title: [Right-side tri-atrial heart (persistent right valve of the venous sinus)].
mesh_terms: D006325:Heart Atria / Q000002:abnormalities; D006344:Heart Septal Defects, Atrial / Q000209:etiology / Q000473:pathology*; D006801:Humans
vernacular_title: Pravostoronnee trekhpredserdnoe serdtse (persistiruiushchiĭ pravyĭ klapan venoznogo sinusa).