na INLIS000000000016771 20250408102634 0010-0425000002 ta 250408 0 0-683-03252-6 614.4 614.4 FLE c Fletcher, Robert H. Clinical Epidemiology / Robert H. Fletcher London : Williams & Wilkins, 1982 xi, 223 hlm. : Ilus. ; 15 x 23 cm Epidemiology Suzanne W. Fletcher 0031/8258