00637 a2200241 4500 0781722187 610.72 DES 27489 47620 Hulley, Stephen B. Designing clinical research anepidemiologic approach 2nd Philadelphia Lippincott Williams & Wilins 2001 2001 xiv,336p. 25cm Research Medicine Clinical research Newman, Thomas B. Cummings, Steven R. Browner, Warren S. Grady, Deborah Hearst, Norman L 54211 54211 0 0 0 0 LEN MKDL MKDL LEN 2012-01-10 1 610.72DES 65481 2023-12-05 00:00:00 2023-11-14 0.00 2016-10-31 L