TY - BOOK AU - Fletcher, Robert H. AU - Suzanne, W Fletcher TI - Clinical Epidemiology : : The Essential SN - 9781451144475 U1 - 614.4 PY - 2014/// CY - New York PB - Wolters & Kluwer KW - Clinical Epidemiology N1 - Page Numbers in Italics Denote Figures Those Followed By a t Denote Tables ER -