MASINI, V [Variations in the heart rate after exertion in the presence of auricular fibrillation and following sinus rhythm]. [electronic resource] - Il Policlinico. Sezione pratica Dec 1950 - 1596-8 p. digital Publication Type: Journal Article ISSN: 0032-2644 Subjects--Topical Terms: Atrial FibrillationHeart RateHumansMyocardial ContractionPhysical Exertion