Ajani J A, Dodd L G, Daugherty K, Warkentin D, Ilson D H
Department of Gastrointestinal Oncology and Digestive Diseases, University of Texas M. D. Anderson Cancer Center, Houston 77030-4095.
J Natl Cancer Inst. 1994 Jan 5;86(1):51-3. doi: 10.1093/jnci/86.1.51.