RT Journal Article SR Electronic T1 Postpartum hypertension JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E913 OP E913 DO 10.1503/cmaj.160785 VO 189 IS 27 A1 Kristina Powles A1 Shital Gandhi YR 2017 UL http://www.cmaj.ca/content/189/27/E913.abstract AB