Global HD Surgical Monitors Market Research Report 2021-2025
In the context of China-US trade war and COVID-19 epidemic, it will have a big influence on this market. HD Surgical Monitors Report by Material, Application, and Geography – Global Forecast to 2025 is a professional and comprehensive research report on the world’s major regional market conditions, focusing on the main regions (North America, Europe and Asia-Pacific) and the main countries (United States, Germany, United Kingdom, Japan, South Korea and China).
In this report, the global HD Surgical Monitors market is valued at USD XX million in 2021 and is projected to reach USD XX million by the end of 2025, growing at a CAGR of XX% during the period 2021 to 2025.
The report firstly introduced the HD Surgical Monitors basics: definitions, classifications, applications and market overview; product specifications; manufacturing processes; cost structures, raw materials and so on. Then it analyzed the world’s main region market conditions, including the product price, profit, capacity, production, supply, demand and market growth rate and forecast etc. In the end, the report introduced new project SWOT analysis, investment feasibility analysis, and investment return analysis.
The major players profiled in this report include:
Sony
Barco
Novanta
Getinge Group
NDS
Steris
Stryker
LG
The end users/applications and product categories analysis:
On the basis of product, this report displays the sales volume, revenue (Million USD), product price, market share and growth rate of each type, primarily split into-
General Type
On the basis on the end users/applications, this report focuses on the status and outlook for major applications/end users, sales volume, market share and growth rate of HD Surgical Monitors for each application, including-
Hospitals
Clinic
In this report, the global HD Surgical Monitors market is valued at USD XX million in 2021 and is projected to reach USD XX million by the end of 2025, growing at a CAGR of XX% during the period 2021 to 2025.
The report firstly introduced the HD Surgical Monitors basics: definitions, classifications, applications and market overview; product specifications; manufacturing processes; cost structures, raw materials and so on. Then it analyzed the world’s main region market conditions, including the product price, profit, capacity, production, supply, demand and market growth rate and forecast etc. In the end, the report introduced new project SWOT analysis, investment feasibility analysis, and investment return analysis.
The major players profiled in this report include:
Sony
Barco
Novanta
Getinge Group
NDS
Steris
Stryker
LG
The end users/applications and product categories analysis:
On the basis of product, this report displays the sales volume, revenue (Million USD), product price, market share and growth rate of each type, primarily split into-
General Type
On the basis on the end users/applications, this report focuses on the status and outlook for major applications/end users, sales volume, market share and growth rate of HD Surgical Monitors for each application, including-
Hospitals
Clinic
PART I HD SURGICAL MONITORS INDUSTRY OVERVIEW
CHAPTER ONE HD SURGICAL MONITORS INDUSTRY OVERVIEW
1.1 HD Surgical Monitors Definition
1.2 HD Surgical Monitors Classification Analysis
1.2.1 HD Surgical Monitors Main Classification Analysis
1.2.2 HD Surgical Monitors Main Classification Share Analysis
1.3 HD Surgical Monitors Application Analysis
1.3.1 HD Surgical Monitors Main Application Analysis
1.3.2 HD Surgical Monitors Main Application Share Analysis
1.4 HD Surgical Monitors Industry Chain Structure Analysis
1.5 HD Surgical Monitors Industry Development Overview
1.5.1 HD Surgical Monitors Product History Development Overview
1.5.1 HD Surgical Monitors Product Market Development Overview
1.6 HD Surgical Monitors Global Market Comparison Analysis
1.6.1 HD Surgical Monitors Global Import Market Analysis
1.6.2 HD Surgical Monitors Global Export Market Analysis
1.6.3 HD Surgical Monitors Global Main Region Market Analysis
1.6.4 HD Surgical Monitors Global Market Comparison Analysis
1.6.5 HD Surgical Monitors Global Market Development Trend Analysis
CHAPTER TWO HD SURGICAL MONITORS UP AND DOWN STREAM INDUSTRY ANALYSIS
2.1 Upstream Raw Materials Analysis
2.1.1 Proportion of Manufacturing Cost
2.1.2 Manufacturing Cost Structure of HD Surgical Monitors Analysis
2.2 Down Stream Market Analysis
2.2.1 Down Stream Market Analysis
2.2.2 Down Stream Demand Analysis
2.2.3 Down Stream Market Trend Analysis
PART II ASIA HD SURGICAL MONITORS INDUSTRY (THE REPORT COMPANY INCLUDING THE BELOW LISTED BUT NOT ALL)
CHAPTER THREE ASIA HD SURGICAL MONITORS MARKET ANALYSIS
3.1 Asia HD Surgical Monitors Product Development History
3.2 Asia HD Surgical Monitors Competitive Landscape Analysis
3.3 Asia HD Surgical Monitors Market Development Trend
CHAPTER FOUR 2016-2021 ASIA HD SURGICAL MONITORS PRODUCTIONS SUPPLY SALES DEMAND MARKET STATUS AND FORECAST
4.1 2016-2021 HD Surgical Monitors Production Overview
4.2 2016-2021 HD Surgical Monitors Production Market Share Analysis
4.3 2016-2021 HD Surgical Monitors Demand Overview
4.4 2016-2021 HD Surgical Monitors Supply Demand and Shortage
4.5 2016-2021 HD Surgical Monitors Import Export Consumption
4.6 2016-2021 HD Surgical Monitors Cost Price Production Value Gross Margin
CHAPTER FIVE ASIA HD SURGICAL MONITORS KEY MANUFACTURERS ANALYSIS
5.1 Company A
5.1.1 Company Profile
5.1.2 Product Picture and Specification
5.1.3 Product Application Analysis
5.1.4 Capacity Production Price Cost Production Value
5.1.5 Contact Information
5.2 Company B
5.2.1 Company Profile
5.2.2 Product Picture and Specification
5.2.3 Product Application Analysis
5.2.4 Capacity Production Price Cost Production Value
5.2.5 Contact Information
5.3 Company C
5.3.1 Company Profile
5.3.2 Product Picture and Specification
5.3.3 Product Application Analysis
5.3.4 Capacity Production Price Cost Production Value
5.3.5 Contact Information
5.4 Company D
5.4.1 Company Profile
5.4.2 Product Picture and Specification
5.4.3 Product Application Analysis
5.4.4 Capacity Production Price Cost Production Value
5.4.5 Contact Information
CHAPTER SIX ASIA HD SURGICAL MONITORS INDUSTRY DEVELOPMENT TREND
6.1 2021-2025 HD Surgical Monitors Production Overview
6.2 2021-2025 HD Surgical Monitors Production Market Share Analysis
6.3 2021-2025 HD Surgical Monitors Demand Overview
6.4 2021-2025 HD Surgical Monitors Supply Demand and Shortage
6.5 2021-2025 HD Surgical Monitors Import Export Consumption
6.6 2021-2025 HD Surgical Monitors Cost Price Production Value Gross Margin
PART III NORTH AMERICAN HD SURGICAL MONITORS INDUSTRY (THE REPORT COMPANY INCLUDING THE BELOW LISTED BUT NOT ALL)
CHAPTER SEVEN NORTH AMERICAN HD SURGICAL MONITORS MARKET ANALYSIS
7.1 North American HD Surgical Monitors Product Development History
7.2 North American HD Surgical Monitors Competitive Landscape Analysis
7.3 North American HD Surgical Monitors Market Development Trend
CHAPTER EIGHT 2016-2021 NORTH AMERICAN HD SURGICAL MONITORS PRODUCTIONS SUPPLY SALES DEMAND MARKET STATUS AND FORECAST
8.1 2016-2021 HD Surgical Monitors Production Overview
8.2 2016-2021 HD Surgical Monitors Production Market Share Analysis
8.3 2016-2021 HD Surgical Monitors Demand Overview
8.4 2016-2021 HD Surgical Monitors Supply Demand and Shortage
8.5 2016-2021 HD Surgical Monitors Import Export Consumption
8.6 2016-2021 HD Surgical Monitors Cost Price Production Value Gross Margin
CHAPTER NINE NORTH AMERICAN HD SURGICAL MONITORS KEY MANUFACTURERS ANALYSIS
9.1 Company A
9.1.1 Company Profile
9.1.2 Product Picture and Specification
9.1.3 Product Application Analysis
9.1.4 Capacity Production Price Cost Production Value
9.1.5 Contact Information
9.2 Company B
9.2.1 Company Profile
9.2.2 Product Picture and Specification
9.2.3 Product Application Analysis
9.2.4 Capacity Production Price Cost Production Value
9.2.5 Contact Information
CHAPTER TEN NORTH AMERICAN HD SURGICAL MONITORS INDUSTRY DEVELOPMENT TREND
10.1 2021-2025 HD Surgical Monitors Production Overview
10.2 2021-2025 HD Surgical Monitors Production Market Share Analysis
10.3 2021-2025 HD Surgical Monitors Demand Overview
10.4 2021-2025 HD Surgical Monitors Supply Demand and Shortage
10.5 2021-2025 HD Surgical Monitors Import Export Consumption
10.6 2021-2025 HD Surgical Monitors Cost Price Production Value Gross Margin
PART IV EUROPE HD SURGICAL MONITORS INDUSTRY ANALYSIS (THE REPORT COMPANY INCLUDING THE BELOW LISTED BUT NOT ALL)
CHAPTER ELEVEN EUROPE HD SURGICAL MONITORS MARKET ANALYSIS
11.1 Europe HD Surgical Monitors Product Development History
11.2 Europe HD Surgical Monitors Competitive Landscape Analysis
11.3 Europe HD Surgical Monitors Market Development Trend
CHAPTER TWELVE 2016-2021 EUROPE HD SURGICAL MONITORS PRODUCTIONS SUPPLY SALES DEMAND MARKET STATUS AND FORECAST
12.1 2016-2021 HD Surgical Monitors Production Overview
12.2 2016-2021 HD Surgical Monitors Production Market Share Analysis
12.3 2016-2021 HD Surgical Monitors Demand Overview
12.4 2016-2021 HD Surgical Monitors Supply Demand and Shortage
12.5 2016-2021 HD Surgical Monitors Import Export Consumption
12.6 2016-2021 HD Surgical Monitors Cost Price Production Value Gross Margin
CHAPTER THIRTEEN EUROPE HD SURGICAL MONITORS KEY MANUFACTURERS ANALYSIS
13.1 Company A
13.1.1 Company Profile
13.1.2 Product Picture and Specification
13.1.3 Product Application Analysis
13.1.4 Capacity Production Price Cost Production Value
13.1.5 Contact Information
13.2 Company B
13.2.1 Company Profile
13.2.2 Product Picture and Specification
13.2.3 Product Application Analysis
13.2.4 Capacity Production Price Cost Production Value
13.2.5 Contact Information
CHAPTER FOURTEEN EUROPE HD SURGICAL MONITORS INDUSTRY DEVELOPMENT TREND
14.1 2021-2025 HD Surgical Monitors Production Overview
14.2 2021-2025 HD Surgical Monitors Production Market Share Analysis
14.3 2021-2025 HD Surgical Monitors Demand Overview
14.4 2021-2025 HD Surgical Monitors Supply Demand and Shortage
14.5 2021-2025 HD Surgical Monitors Import Export Consumption
14.6 2021-2025 HD Surgical Monitors Cost Price Production Value Gross Margin
PART V HD SURGICAL MONITORS MARKETING CHANNELS AND INVESTMENT FEASIBILITY
CHAPTER FIFTEEN HD SURGICAL MONITORS MARKETING CHANNELS DEVELOPMENT PROPOSALS ANALYSIS
15.1 HD Surgical Monitors Marketing Channels Status
15.2 HD Surgical Monitors Marketing Channels Characteristic
15.3 HD Surgical Monitors Marketing Channels Development Trend
15.2 New Firms Enter Market Strategy
15.3 New Project Investment Proposals
CHAPTER SIXTEEN DEVELOPMENT ENVIRONMENTAL ANALYSIS
16.1 China Macroeconomic Environment Analysis
16.2 European Economic Environmental Analysis
16.3 United States Economic Environmental Analysis
16.4 Japan Economic Environmental Analysis
16.5 Global Economic Environmental Analysis
CHAPTER SEVENTEEN HD SURGICAL MONITORS NEW PROJECT INVESTMENT FEASIBILITY ANALYSIS
17.1 HD Surgical Monitors Market Analysis
17.2 HD Surgical Monitors Project SWOT Analysis
17.3 HD Surgical Monitors New Project Investment Feasibility Analysis
PART VI GLOBAL HD SURGICAL MONITORS INDUSTRY CONCLUSIONS
CHAPTER EIGHTEEN 2016-2021 GLOBAL HD SURGICAL MONITORS PRODUCTIONS SUPPLY SALES DEMAND MARKET STATUS AND FORECAST
18.1 2016-2021 HD Surgical Monitors Production Overview
18.2 2016-2021 HD Surgical Monitors Production Market Share Analysis
18.3 2016-2021 HD Surgical Monitors Demand Overview
18.4 2016-2021 HD Surgical Monitors Supply Demand and Shortage
18.5 2016-2021 HD Surgical Monitors Import Export Consumption
18.6 2016-2021 HD Surgical Monitors Cost Price Production Value Gross Margin
CHAPTER NINETEEN GLOBAL HD SURGICAL MONITORS INDUSTRY DEVELOPMENT TREND
19.1 2021-2025 HD Surgical Monitors Production Overview
19.2 2021-2025 HD Surgical Monitors Production Market Share Analysis
19.3 2021-2025 HD Surgical Monitors Demand Overview
19.4 2021-2025 HD Surgical Monitors Supply Demand and Shortage
19.5 2021-2025 HD Surgical Monitors Import Export Consumption
19.6 2021-2025 HD Surgical Monitors Cost Price Production Value Gross Margin
CHAPTER TWENTY GLOBAL HD SURGICAL MONITORS INDUSTRY RESEARCH CONCLUSIONS
CHAPTER ONE HD SURGICAL MONITORS INDUSTRY OVERVIEW
1.1 HD Surgical Monitors Definition
1.2 HD Surgical Monitors Classification Analysis
1.2.1 HD Surgical Monitors Main Classification Analysis
1.2.2 HD Surgical Monitors Main Classification Share Analysis
1.3 HD Surgical Monitors Application Analysis
1.3.1 HD Surgical Monitors Main Application Analysis
1.3.2 HD Surgical Monitors Main Application Share Analysis
1.4 HD Surgical Monitors Industry Chain Structure Analysis
1.5 HD Surgical Monitors Industry Development Overview
1.5.1 HD Surgical Monitors Product History Development Overview
1.5.1 HD Surgical Monitors Product Market Development Overview
1.6 HD Surgical Monitors Global Market Comparison Analysis
1.6.1 HD Surgical Monitors Global Import Market Analysis
1.6.2 HD Surgical Monitors Global Export Market Analysis
1.6.3 HD Surgical Monitors Global Main Region Market Analysis
1.6.4 HD Surgical Monitors Global Market Comparison Analysis
1.6.5 HD Surgical Monitors Global Market Development Trend Analysis
CHAPTER TWO HD SURGICAL MONITORS UP AND DOWN STREAM INDUSTRY ANALYSIS
2.1 Upstream Raw Materials Analysis
2.1.1 Proportion of Manufacturing Cost
2.1.2 Manufacturing Cost Structure of HD Surgical Monitors Analysis
2.2 Down Stream Market Analysis
2.2.1 Down Stream Market Analysis
2.2.2 Down Stream Demand Analysis
2.2.3 Down Stream Market Trend Analysis
PART II ASIA HD SURGICAL MONITORS INDUSTRY (THE REPORT COMPANY INCLUDING THE BELOW LISTED BUT NOT ALL)
CHAPTER THREE ASIA HD SURGICAL MONITORS MARKET ANALYSIS
3.1 Asia HD Surgical Monitors Product Development History
3.2 Asia HD Surgical Monitors Competitive Landscape Analysis
3.3 Asia HD Surgical Monitors Market Development Trend
CHAPTER FOUR 2016-2021 ASIA HD SURGICAL MONITORS PRODUCTIONS SUPPLY SALES DEMAND MARKET STATUS AND FORECAST
4.1 2016-2021 HD Surgical Monitors Production Overview
4.2 2016-2021 HD Surgical Monitors Production Market Share Analysis
4.3 2016-2021 HD Surgical Monitors Demand Overview
4.4 2016-2021 HD Surgical Monitors Supply Demand and Shortage
4.5 2016-2021 HD Surgical Monitors Import Export Consumption
4.6 2016-2021 HD Surgical Monitors Cost Price Production Value Gross Margin
CHAPTER FIVE ASIA HD SURGICAL MONITORS KEY MANUFACTURERS ANALYSIS
5.1 Company A
5.1.1 Company Profile
5.1.2 Product Picture and Specification
5.1.3 Product Application Analysis
5.1.4 Capacity Production Price Cost Production Value
5.1.5 Contact Information
5.2 Company B
5.2.1 Company Profile
5.2.2 Product Picture and Specification
5.2.3 Product Application Analysis
5.2.4 Capacity Production Price Cost Production Value
5.2.5 Contact Information
5.3 Company C
5.3.1 Company Profile
5.3.2 Product Picture and Specification
5.3.3 Product Application Analysis
5.3.4 Capacity Production Price Cost Production Value
5.3.5 Contact Information
5.4 Company D
5.4.1 Company Profile
5.4.2 Product Picture and Specification
5.4.3 Product Application Analysis
5.4.4 Capacity Production Price Cost Production Value
5.4.5 Contact Information
CHAPTER SIX ASIA HD SURGICAL MONITORS INDUSTRY DEVELOPMENT TREND
6.1 2021-2025 HD Surgical Monitors Production Overview
6.2 2021-2025 HD Surgical Monitors Production Market Share Analysis
6.3 2021-2025 HD Surgical Monitors Demand Overview
6.4 2021-2025 HD Surgical Monitors Supply Demand and Shortage
6.5 2021-2025 HD Surgical Monitors Import Export Consumption
6.6 2021-2025 HD Surgical Monitors Cost Price Production Value Gross Margin
PART III NORTH AMERICAN HD SURGICAL MONITORS INDUSTRY (THE REPORT COMPANY INCLUDING THE BELOW LISTED BUT NOT ALL)
CHAPTER SEVEN NORTH AMERICAN HD SURGICAL MONITORS MARKET ANALYSIS
7.1 North American HD Surgical Monitors Product Development History
7.2 North American HD Surgical Monitors Competitive Landscape Analysis
7.3 North American HD Surgical Monitors Market Development Trend
CHAPTER EIGHT 2016-2021 NORTH AMERICAN HD SURGICAL MONITORS PRODUCTIONS SUPPLY SALES DEMAND MARKET STATUS AND FORECAST
8.1 2016-2021 HD Surgical Monitors Production Overview
8.2 2016-2021 HD Surgical Monitors Production Market Share Analysis
8.3 2016-2021 HD Surgical Monitors Demand Overview
8.4 2016-2021 HD Surgical Monitors Supply Demand and Shortage
8.5 2016-2021 HD Surgical Monitors Import Export Consumption
8.6 2016-2021 HD Surgical Monitors Cost Price Production Value Gross Margin
CHAPTER NINE NORTH AMERICAN HD SURGICAL MONITORS KEY MANUFACTURERS ANALYSIS
9.1 Company A
9.1.1 Company Profile
9.1.2 Product Picture and Specification
9.1.3 Product Application Analysis
9.1.4 Capacity Production Price Cost Production Value
9.1.5 Contact Information
9.2 Company B
9.2.1 Company Profile
9.2.2 Product Picture and Specification
9.2.3 Product Application Analysis
9.2.4 Capacity Production Price Cost Production Value
9.2.5 Contact Information
CHAPTER TEN NORTH AMERICAN HD SURGICAL MONITORS INDUSTRY DEVELOPMENT TREND
10.1 2021-2025 HD Surgical Monitors Production Overview
10.2 2021-2025 HD Surgical Monitors Production Market Share Analysis
10.3 2021-2025 HD Surgical Monitors Demand Overview
10.4 2021-2025 HD Surgical Monitors Supply Demand and Shortage
10.5 2021-2025 HD Surgical Monitors Import Export Consumption
10.6 2021-2025 HD Surgical Monitors Cost Price Production Value Gross Margin
PART IV EUROPE HD SURGICAL MONITORS INDUSTRY ANALYSIS (THE REPORT COMPANY INCLUDING THE BELOW LISTED BUT NOT ALL)
CHAPTER ELEVEN EUROPE HD SURGICAL MONITORS MARKET ANALYSIS
11.1 Europe HD Surgical Monitors Product Development History
11.2 Europe HD Surgical Monitors Competitive Landscape Analysis
11.3 Europe HD Surgical Monitors Market Development Trend
CHAPTER TWELVE 2016-2021 EUROPE HD SURGICAL MONITORS PRODUCTIONS SUPPLY SALES DEMAND MARKET STATUS AND FORECAST
12.1 2016-2021 HD Surgical Monitors Production Overview
12.2 2016-2021 HD Surgical Monitors Production Market Share Analysis
12.3 2016-2021 HD Surgical Monitors Demand Overview
12.4 2016-2021 HD Surgical Monitors Supply Demand and Shortage
12.5 2016-2021 HD Surgical Monitors Import Export Consumption
12.6 2016-2021 HD Surgical Monitors Cost Price Production Value Gross Margin
CHAPTER THIRTEEN EUROPE HD SURGICAL MONITORS KEY MANUFACTURERS ANALYSIS
13.1 Company A
13.1.1 Company Profile
13.1.2 Product Picture and Specification
13.1.3 Product Application Analysis
13.1.4 Capacity Production Price Cost Production Value
13.1.5 Contact Information
13.2 Company B
13.2.1 Company Profile
13.2.2 Product Picture and Specification
13.2.3 Product Application Analysis
13.2.4 Capacity Production Price Cost Production Value
13.2.5 Contact Information
CHAPTER FOURTEEN EUROPE HD SURGICAL MONITORS INDUSTRY DEVELOPMENT TREND
14.1 2021-2025 HD Surgical Monitors Production Overview
14.2 2021-2025 HD Surgical Monitors Production Market Share Analysis
14.3 2021-2025 HD Surgical Monitors Demand Overview
14.4 2021-2025 HD Surgical Monitors Supply Demand and Shortage
14.5 2021-2025 HD Surgical Monitors Import Export Consumption
14.6 2021-2025 HD Surgical Monitors Cost Price Production Value Gross Margin
PART V HD SURGICAL MONITORS MARKETING CHANNELS AND INVESTMENT FEASIBILITY
CHAPTER FIFTEEN HD SURGICAL MONITORS MARKETING CHANNELS DEVELOPMENT PROPOSALS ANALYSIS
15.1 HD Surgical Monitors Marketing Channels Status
15.2 HD Surgical Monitors Marketing Channels Characteristic
15.3 HD Surgical Monitors Marketing Channels Development Trend
15.2 New Firms Enter Market Strategy
15.3 New Project Investment Proposals
CHAPTER SIXTEEN DEVELOPMENT ENVIRONMENTAL ANALYSIS
16.1 China Macroeconomic Environment Analysis
16.2 European Economic Environmental Analysis
16.3 United States Economic Environmental Analysis
16.4 Japan Economic Environmental Analysis
16.5 Global Economic Environmental Analysis
CHAPTER SEVENTEEN HD SURGICAL MONITORS NEW PROJECT INVESTMENT FEASIBILITY ANALYSIS
17.1 HD Surgical Monitors Market Analysis
17.2 HD Surgical Monitors Project SWOT Analysis
17.3 HD Surgical Monitors New Project Investment Feasibility Analysis
PART VI GLOBAL HD SURGICAL MONITORS INDUSTRY CONCLUSIONS
CHAPTER EIGHTEEN 2016-2021 GLOBAL HD SURGICAL MONITORS PRODUCTIONS SUPPLY SALES DEMAND MARKET STATUS AND FORECAST
18.1 2016-2021 HD Surgical Monitors Production Overview
18.2 2016-2021 HD Surgical Monitors Production Market Share Analysis
18.3 2016-2021 HD Surgical Monitors Demand Overview
18.4 2016-2021 HD Surgical Monitors Supply Demand and Shortage
18.5 2016-2021 HD Surgical Monitors Import Export Consumption
18.6 2016-2021 HD Surgical Monitors Cost Price Production Value Gross Margin
CHAPTER NINETEEN GLOBAL HD SURGICAL MONITORS INDUSTRY DEVELOPMENT TREND
19.1 2021-2025 HD Surgical Monitors Production Overview
19.2 2021-2025 HD Surgical Monitors Production Market Share Analysis
19.3 2021-2025 HD Surgical Monitors Demand Overview
19.4 2021-2025 HD Surgical Monitors Supply Demand and Shortage
19.5 2021-2025 HD Surgical Monitors Import Export Consumption
19.6 2021-2025 HD Surgical Monitors Cost Price Production Value Gross Margin
CHAPTER TWENTY GLOBAL HD SURGICAL MONITORS INDUSTRY RESEARCH CONCLUSIONS