RT Journal Article SR Electronic T1 Managing physician shortages: We are not doing enough JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1057 OP 1057 DO 10.1503/cmaj.070258 VO 176 IS 8 A1 Nick Busing YR 2007 UL http://www.cmaj.ca/content/176/8/1057.abstract