Morrison Elizabeth H, Boker John R, Hollingshead Judy, Prislin Michael D, Hitchcock Maurice A, Litzelman Debra K
Department of Family Medicine, Unviersity of California, 101 City Drive South, Orange, CA 92868-3298, USA.
Acad Med. 2002 Oct;77(10 Suppl):S29-32. doi: 10.1097/00001888-200210001-00010.