TY - JOUR T1 - Helplessness JF - Canadian Medical Association Journal JO - CMAJ SP - E591 LP - E592 DO - 10.1503/cmaj.191617 VL - 192 IS - 21 AU - Andrew J. Arifin Y1 - 2020/05/25 UR - http://www.cmaj.ca/content/192/21/E591.abstract ER -