The Chernobyl Disaster: Cancer following the Accident at the Chernobyl Nuclear Power Plant Correspondence to Dr. Maureen Hatch, Chernobyl Research Unit, Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 6120 Executive Boulevard, Rockville, MD 20852 (e-mail: hatchm@mail.nih.gov).