Author:Danielle Zerr, MD
Date Written:
Editor:Smith, Elizabeth, BA
Edit Date:08/11/00
Reviewer:Gail Hendrickson, RN, BS
Date Reviewed:07/01/01
Harrison's Principles of Internal Medicine, 1998, Fauci et al.
Tierney, Lawrence, editor, "Current Medical Diagnosis and Treatment, 39th edition", 2000
The Merck Manual of Medical Information, 1997