[The effects of epidural and spinal block on cardiac performance by a non-invasive method (author's transl)].
D000328:Adult; D000368:Aged; D000767:Anesthesia, Epidural; D000775:Anesthesia, Spinal; D006321:Heart / Q000502:physiology*; D006801:Humans; D008875:Middle Aged; D009407:Nerve Block