Authors: John W Sellors; Tina L Karwalajtys; Janusz Kaczorowski; James B Mahony; Alice Lytwyn; Sylvia Chong; Joanna Sparrow; Attila Lorincz Journal: CMAJ Date: 2003-02-18 Impact factor: 8.262
Authors: Rachel L Winer; Shu-Kuang Lee; James P Hughes; Diane E Adam; Nancy B Kiviat; Laura A Koutsky Journal: Am J Epidemiol Date: 2003-02-01 Impact factor: 4.897