RT Journal Article SR Electronic T1 Using electronic health records for clinical trials: Where do we stand and where can we go? JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E128 OP E133 DO 10.1503/cmaj.180841 VO 191 IS 5 A1 Kimberly A. Mc Cord A1 Lars G. Hemkens YR 2019 UL http://www.cmaj.ca/content/191/5/E128.abstract