Scottish Intercollegiate Network
Singapore Ministry of Health
Siskin Hospital for Physical Rehabilitation (Chattanooga TN)
Smith and Nephew Ltd. Private For Profit Organization
Society for Healthcare Epidemiology of America
Society for Surgery of the Alimentary Tract Inc
Society of American Gastrointestinal and Endoscopic Surgeons
Society of Critical Care Medicine
Society of Gynecologic Oncologists of Canada
Society of Interventional Radiology
Society of Nuclear Medicine Inc
Society of Thoracic Surgeons
Southern California
Substance Abuse and Mental Health Services Administration (U.S.)
Task Force on Community Preventive Services
The Endocrine Society
The North American Menopause Society