RT Journal Article SR Electronic T1 Determining the causes of postural hypotension JF Canadian Family Physician JO Can Fam Physician FD The College of Family Physicians of Canada SP 40 OP 40 VO 64 IS 1 A1 Frank Molnar A1 Christopher C. Frank YR 2018 UL http://www.cfp.ca/content/64/1/40.abstract AB