Doubeni Chyke A, Rustgi Anil
Department of Family Medicine and Community Health, Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104
Division of Gastroenterology, Departments of Medicine and Genetics, Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104.
J Natl Cancer Inst. 2015 Jul 28;107(10). doi: 10.1093/jnci/djv229. Print 2015 Oct.