PT - JOURNAL ARTICLE AU - CEN Advisory Board AU - W. Jack Stelmach AU - Paul C. Brucker AU - Harmon E. Holverson AU - B. Leslie Huffman, Jr. AU - William J. Kane AU - David R. Rush TI - Phase IV Drug Studies AID - 10.3122/jabfm.5.1.116 DP - 1992 Jan 01 TA - The Journal of the American Board of Family Practice PG - 116--118 VI - 5 IP - 1 4099 - http://www.jabfm.org/content/5/1/116.short 4100 - http://www.jabfm.org/content/5/1/116.full SO - J Am Board Fam Med1992 Jan 01; 5