Subject
- Cardiovascular Surgical Procedures1
- Central Nervous System1
- Coronary Disease1
- Extremities1
- Health Care Economics and Organizations1
- Health Care Reform1
- Heart Diseases1
- Heart Failure1
- Hospitals, Teaching1
- Japan1
- Jordan1
- National Health Programs1
- New York1
- Plasma1
- Prostheses and Implants1
- Scotland1
- Thoracic Injuries1
- Thoracic Surgery1
- Thoracic Surgical Procedures1
- USSR1