Global Ambulatory Surgical & Emergency Center Services Market By Type (Primary Care Offices , Emergency Departments , Surgical Specialty , and Medical Specialty), By Application (Pain Management , Ophthalmology , Gastrointestinal , Pulmonary , Dermatology , Vascular , Urology , ENT , Orthopedics , and Obstetrics), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029