RT Journal Article SR Electronic T1 Principles of Clinical Practice: An Introductory Textbook JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 453 OP 454 DO 10.3122/jabfm.5.4.453b VO 5 IS 4 A1 Vincent R. Hunt YR 1992 UL http://www.jabfm.org/content/5/4/453.2.abstract AB