Journal of General Internal Medicine
Journal of General Internal Medicine > 2008 > 23 > 3 > 323-328
Journal of General Internal Medicine > 2008 > 23 > 5 > 581-587
Journal of General Internal Medicine > 2008 > 23 > 7 > 1066-1070
Journal of General Internal Medicine > 2008 > 23 > 8 > 1194-1199