title: Steel knives and iron lungs: medical instruments as medical history.
authors.affiliation: Francis C. Wood Institute for the History of Medicine, College of Physicians, Philadelphia.
authors.forename: G
authors.initials: G
authors.lastname: Worden
mesh_terms: D004867:Equipment Design / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D009772:Obstetrical Forceps / Q000266:history; D013525:Surgical Instruments / Q000266:history*; D014481:United States; D012122:Ventilators, Mechanical / Q000266:history