RT Journal Article SR Electronic T1 Physicians and regionalization in Canada: past, present and future JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1370 OP E1370 DO 10.1503/cmaj.171237 VO 189 IS 44 YR 2017 UL http://www.cmaj.ca/content/189/44/E1370.abstract AB