CardiaHeartDeath, SuddenDeath, Sudden, CardiacHeart RateSudden Infant DeathStomach NeoplasmsEsophageal NeoplasmsHeart FailureHeart DiseasesAdenocarcinomaHeart TransplantationHeart Defects, CongenitalRisk FactorsEsophagogastric JunctionEsophageal AchalasiaFetal HeartHeart ValvesBarrett EsophagusHeart AtriaAfrican Continental Ancestry GroupEuropean Continental Ancestry GroupHeart BlockProspective StudiesTime FactorsIncidenceMyocardiumCoronary DiseaseFollow-Up StudiesMetaplasiaMyocardial IschemiaUnited StatesCase-Control StudiesHeart Function TestsLongitudinal StudiesHeart Arrest, InducedArrhythmias, CardiacMyocardial ContractionHeart ArrestCohort StudiesMyocytes, CardiacGastroesophageal Reflux