TY - BOOK AU - Rothman Kenneth J, Greenland Sander, Lash Timothy L TI - Modern epidemiology SN - 9788184731125 U1 - WA105 PY - 2008/// CY - Philadelphia PB - Wolters Kluwer/Lippincott Williams ^Wilkins KW - Epidemiology N2 - Epidemiology ER -