Journal of General Internal Medicine
Journal of General Internal Medicine > 2007 > 22 > 1 > 74-79
Journal of General Internal Medicine > 2007 > 22 > 3 > 425-430
Journal of General Internal Medicine > 2007 > 22 > 5 > 649-654
Journal of General Internal Medicine > 2007 > 22 > 7 > 982-987