TY - JOUR T1 - Nearly a third of tests and treatments are unnecessary: CIHI JF - Canadian Medical Association Journal JO - CMAJ SP - E620 LP - E621 DO - 10.1503/cmaj.1095417 VL - 189 IS - 16 AU - Lauren Vogel Y1 - 2017/04/24 UR - http://www.cmaj.ca/content/189/16/E620.abstract ER -