| Affiliation: | (1) Program in Clinical Decision Making, Department of Family Medicine, College of Medicine, The University of Oklahoma, 73190 Oklahoma City, OK;(2) Section of General Internal Medicine, University Hospital, Boston University Medical Center, 02118-2334 Boston, MA;(3) Division of Clinical Epidemiology and Division of General Medicine and Primary Care, Beth Israel Hospital, Harvard Medical School, USA;(4) Section of General Internal Medicine, University Hospital, Boston University Medical Center, Boston, MA |
