title: The STS database at 20 years: a tribute to Dr Richard E. Clark.
authors.forename: Fred H
authors.initials: FH
authors.lastname: Edwards
mesh_terms: D006348:Cardiac Surgical Procedures / Q000266:history* / Q000706:statistics & numerical data; D016208:Databases, Factual / Q000266:history*; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D012042:Registries; D012955:Societies, Medical / Q000266:history* / Q000706:statistics & numerical data; D013903:Thoracic Surgery / Q000266:history* / Q000706:statistics & numerical data; D014481:United States