Document NExe52m9egMgRRvDxqK4bJ56b

J* Telephones: 767-6600 - 6601 - 6602 - 6603 Cl e a r in g In d u s t r ia l Cl in ic 5548 WEST SIXTY-FIFTH STREET CHICAGO, ILLINOIS 60638 PHILIP FALK, M.D. ROBERT E. BOYD, M.D. RICHARD THORS, M.D. DIRECTORS R. N. CLYNS. M.D, CORPORATE MED. DlHrXJi'UR AMERICAN CYANAMID CO. WAYN3, N. J. 07470 d at e February 17. 1981 RECEIVED fB .. ; iv m igOHN s, T03tlM, M.D. N9160