RT Journal Article SR Electronic T1 Phase IV Drug Studies JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 116 OP 118 DO 10.3122/jabfm.5.1.116 VO 5 IS 1 A1 CEN Advisory Board A1 Stelmach, W. Jack A1 Brucker, Paul C. A1 Holverson, Harmon E. A1 Huffman, B. Leslie A1 Kane, William J. A1 Rush, David R. YR 1992 UL http://www.jabfm.org/content/5/1/116.abstract AB