Comparison of high-dose epinephrine and phenylephrine in spinal anesthesia with tetracaine.
D000368:Aged; D000775:Anesthesia, Spinal; D004357:Drug Synergism; D004837:Epinephrine / Q000627:therapeutic use*; D006801:Humans; D008875:Middle Aged; D010656:Phenylephrine / Q000627:therapeutic use*; D012677:Sensation; D013748:Tetracaine
D013748:Tetracaine; D010656:Phenylephrine; D004837:Epinephrine