RT Journal Article SR Electronic T1 Use of ASA after warfarin for unprovoked VTE JF Canadian Family Physician JO Can Fam Physician FD The College of Family Physicians of Canada SP 1075 OP 1075 VO 59 IS 10 A1 G. Michael Allan A1 Hoan Linh Banh A1 Jonathan Ference YR 2013 UL http://www.cfp.ca/content/59/10/1075.abstract AB