Journal of General Internal Medicine
Journal of General Internal Medicine > 2007 > 22 > 3 > 346-351
Journal of General Internal Medicine > 2007 > 22 > 3 > 362-367
Journal of General Internal Medicine > 2007 > 22 > 6 > 830-834
Journal of General Internal Medicine > 2007 > 22 > 9 > 1305-1310