title: Variations in PQ and abnormal atrial rhythms in young individuals.
authors.forename: A
authors.initials: A
authors.lastname: CORDEIRO
mesh_terms: D001145:Arrhythmias, Cardiac; D002318:Cardiovascular Diseases; D006327:Heart Block; D006801:Humans
keywords: ARRYTHMIA/auricular; HEART/block
vernacular_title: Variações de PQ e ritmos auriculares anormais em individuos jovens.