TY - BOOK AU - Talley,Nicholas Joseph AU - Locke,G.Richard AU - Saito,Yuri A. TI - GI epidemiology SN - 9781405149495 PY - 2007/// CY - Malden, Mass. PB - Blackwell Pub. KW - Gastrointestinal Diseases KW - epidemiology KW - Epidemiologic Methods ER -