TY - JOUR T1 - Challenges presented by a custodian-based medical record access system JF - Canadian Medical Association Journal JO - CMAJ SP - E843 LP - E843 DO - 10.1503/cmaj.72281 VL - 191 IS - 30 AU - Shaun D. Mehta Y1 - 2019/07/29 UR - http://www.cmaj.ca/content/191/30/E843.abstract ER -