title: [Long-term follow-up of children and adolescents with high-grade atrioventricular block].
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D006327:Heart Block / Q000150:complications / Q000401:mortality*; D006330:Heart Defects, Congenital / Q000150:complications; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male
vernacular_title: Dłuzsze obserwacje dzieci i młodziezy z blokiem przedsionkowo-komorowym wysokiego stopnia.