Lo que usted debe saber sobre los gases = What you need to know about gases

Additional Titles:: What you need to know about gases
Published:: Bethesda, MD : U.S. Department of Health & Human Services, National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, National Digestive Diseases Information Clearinghouse, 2011.
Physical Description:: 1 online resource (14 pages) : illustrations
Additional Creators:: National Digestive Diseases Information Clearinghouse (U.S.)