Authors: Kathleen M Neuzil; Yuwei Zhu; Marie R Griffin; Kathryn M Edwards; Juliette M Thompson; Sharon J Tollefson; Peter F Wright Journal: J Infect Dis Date: 2001-12-17 Impact factor: 5.226
Authors: H S Izurieta; W W Thompson; P Kramarz; D K Shay; R L Davis; F DeStefano; S Black; H Shinefield; K Fukuda Journal: N Engl J Med Date: 2000-01-27 Impact factor: 91.245