Institution: | .Department of Medicine, College of Physicians and Surgeons, Columbia University, New York N. Y.;.Department of Obstetrics and Gynecology, College of Physicians and Surgeons, Columbia University, New York N. Y.;.Department of Biochemistry, College of Physicians and Surgeons, Columbia University, New York N. Y.;.The Presbyterian Hospital, and the Columbia University Research Service, New York N. Y.;.Goldwater Memorial Hospital, New York N. Y. |