Affiliation: | Cardiopulmonary Laboratory, United States Naval Hospital, Portsmouth, Va.;Gastroenterology Service and Radioisotope Laboratory, United States Naval Hospital, Portsmouth, Va.;Medical Clinics, Peter Bent Brigham Hospital, Boston, Mass.;Medical Service, Hospital for Joint Diseases, N. Y., N. Y.;Gastroenterology Service, Ochsner Clinic, New Orleans, La. |