RT Journal Article SR Electronic T1 Patient information about HPV and the HPV vaccine JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 462 OP 462 DO 10.1503/cmaj.071061 VO 177 IS 5 A1 van Zyl, Tavé A1 Wooltorton, Eric A1 MacDonald, Noni YR 2007 UL http://www.cmaj.ca/content/177/5/462.abstract