head-out water immersion significantly suppressed plasma concentrations of both norepinephrine ( 704 +/- 72 to 475 +/- 70 pg/ml , p less than 0.005 ) and epinephrine ( 121 +/- 33 to 57 +/- 10 pg/ml , p less than 0.05 ) in all seven patients studied .
C0028351
norepinephrine
C0014563
epinephrine