TY - GEN AU - Katz, David L. TI - Jekel's epidemiology, biostatistics, preventive medicine, and public health SN - 9781455706587 PY - 2014/// CY - Philadelphia, PA PB - Elsevier/Saunders KW - Epidemiology. KW - Medical statistics. KW - Medicine, Preventive KW - Public health ER -