[The Schneider index and amplitude-frequency product in healthy persons of geriatric age].
D000368:Aged / Q000502:physiology; D000375:Aging; D002319:Cardiovascular System; D006334:Heart Function Tests; D006801:Humans
AGED/physiology; CARDIOVASCULAR SYSTEM/function tests; HEART/function tests
El indice de Schneider y el producto amplitud-frecuencia en personas sanas de edad geriatrica.