Key points are not available for this paper at this time.
From the Department of Surgery, University of Rochester School of Medicine and Dentisty, and the Strong Memorial and Rochester Municipal Hospitals, Rochester, New York *Study initiated during author's tenure as Clinical Felloow, American Cancer Society. †Assistnat Professor of Surgery, State University of New York Upstate Medical Center in Syracuse; Assistnat Chief, Surgical Service, Veterans Administration Hospital, Syracuse, New York.
Herbert D. Gullick (Sun,) studied this question.