Gerrity M S, Pathman D E, Linzer M, Steiner B D, Winterbottom L M, Sharp M C, Skochelak S E
Department of Medicine, Oregon Health Sciences University School of Medicine, Portland 97201, USA.
J Gen Intern Med. 1997 Apr;12 Suppl 2(Suppl 2):S90-7. doi: 10.1046/j.1525-1497.12.s2.13.x.