Eggert Tobias, McGlynn Katherine A, Duffy Austin, Manns Michael Peter, Greten Tim F, Altekruse Sean F
Gastrointestinal Malignancy Section, Medical Oncology Branch, National Cancer Institute, , Bethesda, Maryland, USA.
Gut. 2013 Nov;62(11):1667-8. doi: 10.1136/gutjnl-2013-305164. Epub 2013 May 25.