Letter to the Editor - Commentary Chronic Graft-versus-Host Disease - Implementation of the National Institutes of Health Consensus Criteria for Clinical Trials Linda M. Griffith, MD, PhD Division of Allergy, Immunology and Transplantation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA Steven Z. Pavletic, MD Experimental Transplantation and Immunology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA Stephanie J. Lee, MD, MPH Fred Hutchinson Cancer Research Center and University of Washington, Seattle, WA, USA Paul J. Martin, MD Fred Hutchinson Cancer Research Center and University of Washington, Seattle, WA, USA Kirk R. Schultz, MD University of British Columbia, Vancouver, BC, Canada Georgia B. Vogelsang, MD Johns Hopkins University School of Medicine, Baltimore, MD, USA The opinions expressed are those of the authors and do not represent the position of the National Institute of Allergy and Infectious Diseases, the National Cancer Institute, the National Institutes of Health, or the US Government. This workshop was sponsored by the National Cancer Institute, the National Institute of Allergy and Infectious Diseases, and the Office of Rare Diseases, National Institutes of Health, Bethesda, MD, USA. Corresponding Author: Steven Z. Pavletic, MD Head, Graft-versus-Host and Autoimmunity Unit Experimental Transplantation and Immunology Branch National Cancer Institute 10 Center Drive, CRC Rm. 4-3130 MSC 1203 Bethesda, MD 20892-1203 Tel: 301 – 402-4899 Fax: 301 – 480-3444 Email: pavletis@mail.nih.gov