Journal of General Internal Medicine
Journal of General Internal Medicine > 2007 > 22 > 4 > 448-452
Journal of General Internal Medicine > 2007 > 22 > 9 > 1317-1320
Journal of General Internal Medicine > 2007 > 22 > 4 > 448-452
Journal of General Internal Medicine > 2007 > 22 > 9 > 1317-1320