RT Journal Article SR Electronic T1 Thromboembolic Disorders JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 220 OP 221 DO 10.3122/jabfm.2.3.220c VO 2 IS 3 A1 Allen, Brian D. YR 1989 UL http://www.jabfm.org/content/2/3/220.3.abstract AB