| | Essentials of Infectious Disease Epidemiology & Essential Readings in Infectious Disease Epidemiology by M. Magnus Department of Medicine, Howard University, College of Medicine, Washington, DC PII: S1047-2797(09)00345-7 doi:10.1016/j.annepidem.2009.10.008 © 2010 Elsevier Inc. All rights reserved. | |
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