Webb, Penny Essential epidemiology : an introduction for students and health professionals / Penny Webb, Chris Bain, Andrew Page - 3rd ed - Cambridge : Cambridge University Press, 2017 - 494 p. : ill. ISBN: 9781107529151 / 2,160.00 Subjects--Topical Terms: Epidemiologic MethodsEpidemiologyEpidemiological methods LC Class. No.: RA651 / W367 E8 2017