Authors: Scott A Harper; John S Bradley; Janet A Englund; Thomas M File; Stefan Gravenstein; Frederick G Hayden; Allison J McGeer; Kathleen M Neuzil; Andrew T Pavia; Michael L Tapper; Timothy M Uyeki; Richard K Zimmerman Journal: Clin Infect Dis Date: 2009-04-15 Impact factor: 9.079
Authors: Sonja A Rasmussen; Denise J Jamieson; Kitty Macfarlane; Janet D Cragan; Jennifer Williams; Zsakeba Henderson Journal: Am J Public Health Date: 2009-05-21 Impact factor: 9.308