title: More change.
authors.affiliation: Department of Surgery, University of Michigan Medical Center, Ann Arbor 48109.
authors.forename: H
authors.initials: H
authors.lastname: Sloan
mesh_terms: D049673:History, 20th Century; D010506:Periodicals as Topic / Q000266:history*; D012955:Societies, Medical / Q000266:history*; D013903:Thoracic Surgery / Q000266:history*; D014481:United States