RT Journal Article SR Electronic T1 Vaccination against human papillomavirus JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1527 OP 1528 DO 10.1503/cmaj.1070146 VO 177 IS 12 A1 Lippman, Abby A1 Boscoe, Madeline A1 Shimmin, Carolyn YR 2007 UL http://www.cmaj.ca/content/177/12/1527.abstract