RT Journal Article SR Electronic T1 Periodic health examination, 1993 update: 1. Primary prevention of child maltreatment. The Canadian Task Force on the Periodic Health Examination JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 151 OP 163 VO 148 IS 2 A1 MacMillan, H. L. A1 MacMillan, J. H. A1 Offord, D. R. YR 1993 UL http://www.cmaj.ca/content/148/2/151.abstract