Journal of General Internal Medicine
Journal of General Internal Medicine > 2007 > 22 > 1 > 121-126
Journal of General Internal Medicine > 2007 > 22 > 2 > 289-293
Journal of General Internal Medicine > 2007 > 22 > 3 > 389-395
Journal of General Internal Medicine > 2007 > 22 > 11 > 1572-1578