title: Presidential address: Professionalism in the 21st century.
authors: National American Cancer Society, USA.
authors: LaMar S
authors: LS
authors: McGinnis
mesh_terms: D002983:Clinical Competence; D013502:General Surgery / Q000266:history*; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D010819:Physician's Role; D011364:Professional Practice; D012955:Societies, Medical / Q000266:history*; D014481:United States