title: [Sino-atrial node function in the bradycardia-tachycardia syndrome].
mesh_terms: D001919:Bradycardia / Q000150:complications / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012849:Sinoatrial Node / Q000503:physiopathology*; D013577:Syndrome; D013610:Tachycardia / Q000150:complications / Q000503:physiopathology*
vernacular_title: Untersuchungen zur Sinusknotenfunktion beim Bradykardie-Tachykardiesyndrom