RT Journal Article SR Electronic T1 Prevalence of infection with carcinogenic human papillomavirus among older women JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 871 OP 873 VO 167 IS 8 A1 John W. Sellors A1 Tina L. Karwalajtys A1 Janusz A. Kaczorowski A1 James B. Mahony A1 Alice Lytwyn A1 Sylvia Chong A1 Joanna Sparrow A1 Attila Lorincz A1 The Survey of HPV in Older Ontario Women (SHOOW) Group YR 2002 UL http://www.cmaj.ca/content/167/8/871.abstract