TY - JOUR T1 - Parents should declare children’s vaccine status, doctors say JF - Canadian Medical Association Journal JO - CMAJ SP - E424 LP - E424 DO - 10.1503/cmaj.109-5143 VL - 187 IS - 14 AU - Barbara Sibbald Y1 - 2015/10/06 UR - http://www.cmaj.ca/content/187/14/E424.abstract ER -