Endoscopy, Table of Contents

Endoscopy 1993; 25(9): 617-626
DOI: 10.1055/s-2007-1010417

© Georg Thieme Verlag KG Stuttgart · New York

Research Studies on Chemoprevention of Esophageal Cancer at the United States National Cancer Institute

P. Greenwald¹ , G. Kelloff¹ , S. Kalagher² , S. McDonald²

¹Division of Cancer Prevention and Control, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
²Propect Associates, Rockville, Maryland, USA