01267nam 2200361Ka 450 991069307020332120040920160416.0(CKB)5470000002358801(OCoLC)56544361ocm56544361(OCoLC)995470000002358801(EXLCZ)99547000000235880120040920d2004 ua 0spaurmn||||||txtrdacontentcrdamediacrrdacarrierLo que necesito saber sobre el gas[electronic resource] =What I need to know about gasBethesda, MD :U.S. Dept. of Health and Human Services, National Institutes of Health, National Digestive Diseases Information Clearinghouse,2004.NIH publication ;no. 04-4156 STitle from title screen (viewed on Sept. 20, 2004)."Enero 2004."Que necesito saber sobre el gas Gastrointestinal gasUnited StatesGastrointestinal gasNational Digestive Diseases Information Clearinghouse (U.S.)GPOGPOBOOK9910693070203321Lo que necesito saber sobre el gas3433949UNINA