Authors: Ann R Falsey; Patricia A Hennessey; Maria A Formica; Christopher Cox; Edward E Walsh Journal: N Engl J Med Date: 2005-04-28 Impact factor: 91.245
Authors: William W Thompson; David K Shay; Eric Weintraub; Lynnette Brammer; Carolyn B Bridges; Nancy J Cox; Keiji Fukuda Journal: JAMA Date: 2004-09-15 Impact factor: 56.272