01109nam 2200337Ka 450 991069618840332120070831134026.0(CKB)5470000002374923(OCoLC)166529761(EXLCZ)99547000000237492320070831d2007 ua 0engtxtrdacontentcrdamediacrrdacarrierHow the heart works[electronic resource] heart contraction and blood flow[Bethesda, Md]. :U.S. Dept. of Health and Human Services, National Institutes of Health, National Heart, Lung, and Blood Institute,[2007?]1 electronic text HTML fileTitle from title screen (viewed on Aug. 31, 2007).How the heart works HeartContractionBlood flowHeartContraction.Blood flow.National Heart, Lung, and Blood Institute.GPOGPOBOOK9910696188403321How the heart works3461720UNINA