- Correspondence to:
Dr H B El-Serag
The Houston Veterans Affairs Medical Center (152), 2002 Holcombe Blvd, Houston, TX 77030, USA;
- Accepted May 27, 2004
- Revised May 15, 2004
- First published December 10, 2004.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.