title: [INFLUENCE OF THE NYCTHEMERAL CYCLE ON VARIATIONS OF CARDIAC RHYTHM IN MAN].
mesh_terms: D002320:Cardiovascular Physiological Phenomena; D004562:Electrocardiography; D006321:Heart; D010507:Periodicity; D010827:Physiology
keywords: ELECTROCARDIOGRAPHY; HEART; PERIODICITY; PHYSIOLOGY
vernacular_title: INFLUENCE DU CYCLE NYCTH'EM'ERAL SUR LES VARIATIONS DU RYTHME CARDIAQUE CHEZ L'HOMME.