RT Journal Article SR Electronic T1 Questionnaire instrument development in primary health care research JF Canadian Family Physician JO Can Fam Physician FD The College of Family Physicians of Canada SP 699 OP 700 VO 64 IS 9 A1 Hao Zhang A1 Tibor Schuster YR 2018 UL http://www.cfp.ca/content/64/9/699.abstract AB