Your digestive system and how it works / National Digestive Diseases Information Clearinghouse

Published:: [Bethesda, Md.] : U.S. Dept. of Health and Human Services, National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, National Digestive Diseases Information Clearinghouse, [2008]
Physical Description:: 1 online resource (5 pages, 1 unnumbered page) : digital, PDF file
Additional Creators:: National Digestive Diseases Information Clearinghouse (U.S.)