UNIVERSITY OF CINCINNATI COLLEGE OF MEDICINE KET T ERI NG L ABORAT ORY OF A PPL I ED PH YSI OLOGY EDEN AVENUE March 31, 19^2 T ELEPH ONE: U N I VERSI T Y 2 6 6 5 CA BL E ADORESS; KET LAB.

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American Medical Association S35 NORTH DEARBORN STREET CHICAGO IO.

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