[CHANGES IN THE RELATIONS BETWEEN ELECTRICAL SYSTOLE AND PHOTOPLETHYSMOGRAPHIC WAVES IN THE SENILE AGE].
D001775:Blood Circulation; D004560:Electricity; D004562:Electrocardiography; D005853:Geriatrics; D006333:Heart Failure; D006801:Humans; D010991:Plethysmography; D013599:Systole
BLOOD CIRCULATION; ELECTROCARDIOGRAPHY; GERIATRICS; HEART FAILURE, CONGESTIVE; PLETHYSMOGRAPHY
VARIAZIONI DEI RAPPORTI FRA SISTOLE ELETTRICA ED ONDE FOTOPLETISMOGRAFICHE NELL'ET'A SENILE.