Mark H. Beers, MD, Editor-in-Chief

Andrew J. Fletcher, MB, BChir, Senior Assistant Editor; Thomas V. Jones, MD, MPH, Senior Assistant Editor; Robert Porter, MD, Senior Assistant Editor; Michael Berkwits, MD, Assistant Editor; Justin L. Kaplan, MD, Assistant Editor




Editorial Board

Sarah L. Berga, MD; Marjorie A. Bowman, MD, MPA; Douglas A. Drossman, MD; L. Jack Faling, MD; Eugene P. Frenkel, MD; Glen O. Gabbard, MD; Michael Jacewicz, MD; Gerald L. Mandell, MD; John E. Morley, MB, BCh; G. Victor Rossi, PhD; Albert A. Rundio, Jr., PhD; H. Ralph Schumacher, Jr., MD; Peter G. Szilagyi, MD, MPH; Paul H. Tanser, MD, FRCP(C), FRCP(Glasgow)




Editorial and Production Staff

Keryn A.G. Lane, Executive Editor; Sandra J. Masse, Senior Staff Editor; Susan T. Schindler, Senior Staff Editor; Susan C. Short, Senior Staff Editor; Debra G. Share, Staff Editor; Jonathan S. Simmons, Staff Editor; Melody Sadighi, Production Editor; Diane C. Zenker, Textbook Operations Manager; Diane Cosner-Bobrin, Project Manager; Barbara Amelia Nace, Web Site Designer and Developer; Lorraine B. Kilmer, Designer; Michael Reingold, Illustrator; Susan Thomas, PhD, Indexer; Jean Perry, Executive Assistant; Marcia Yarbrough, Administrative Assistant; Gary Zelko, Publisher; Pamela J. Barnes-Paul, Advertising and Promotional Supervisor; Jeanne Nilsen, Subsidiary Rights Coordinator; Leta Bracy, Merck Publishing Group Staff; Kathleen Lahey, Merck Publishing Group Staff; Vivica Stamper, Merck Publishing Group Staff




Published by
Merck Research Laboratories
Division of
Merck & Co., Inc.
Whitehouse Station, N.J.

Copyright © 2003, 2004 by Merck & Co., Inc. All rights reserved.