AU - Glass RM, Hwang M TI - AMbulatory medicine PT - JOUR DP - 1999 TA - JAMA pages = {1795}, VI - 281 IP - 19 AID - 10-1001/pubs.JAMA-ISSN-0098-7484-281-19-jbk0519 [doi] 4100 - http://dx.doi.org/10-1001/pubs.JAMA-ISSN-0098-7484-281-19-jbk0519 SO - JAMA May 19, 1999 281(19):1795