RT Journal Article SR Electronic T1 Saskatchewan MDs oppose new mandatory testing law JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1437 OP 1438 DO 10.1503/cmaj.051460 VO 173 IS 12 A1 Amy Jo Ehman YR 2005 UL http://www.cmaj.ca/content/173/12/1437.2.abstract