Authors: Kimberly M Thompson; Radboud J Duintjer Tebbens; Mark A Pallansch; Olen M Kew; Roland W Sutter; R Bruce Aylward; Margaret Watkins; Howard E Gary; James Alexander; Hamid Jafari; Stephen L Cochi Journal: Am J Public Health Date: 2008-05-29 Impact factor: 9.308