1. Polyarteritis nodosa  (Trust Mark: Doctor-Reviewed)
Polyarteritis nodosa is a serious blood vessel disease in which small and medium-sized arteries become swollen and damaged. • Reviewer: Neil J. Gonter, MD, Assistant Professor of Medicine, Columbia University, New York, NY, and private practice specializing in Rheumatology at Rheumatology Associates of North Jersey, Teaneck, NJ. Review provided by Verimed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

2. Pan American Health Organization : PAN AMERICAN HEALTH ORGANIZATION  (Trust Mark: Doctor-Reviewed)
The origin of the Pan American Health Organization (PAHO) dates back to 1902 when the First International Sanitary Convention of the American Republics, meeting in Washington, DC, established the International Sanitary Bureau. The bureau was to pr...• Author: GEORGE A. O. ALLEYNE, A. DAVID BRANDLING-BENNETT