title: Concentration versus specialization? A case study on the arteria aspera.
authors.affiliation: General Thoracic Surgical Division, Massachusetts General Hospital, and Harvard Medical School, Blake 1570, 55 Fruit Street, Boston, MA 02114, USA.
authors.forename: Hermes C
authors.initials: HC
authors.lastname: Grillo
mesh_terms: D049670:History, 17th Century; D049673:History, 20th Century; D006801:Humans; D013903:Thoracic Surgery / Q000266:history*; D019616:Thoracic Surgical Procedures / Q000266:history / Q000379:methods; D014132:Trachea / Q000601:surgery*; D014135:Tracheal Stenosis / Q000266:history / Q000601:surgery; D014139:Tracheostomy / Q000266:history