there was a significant decrease during aminophylline infusion in the frequency of those apneas , which contained periods of complete respiratory inactivity ( central and mixed apneas ; placebo , 4.3 +/- 1.8/h ; aminophylline , 0.7 +/- 0.5/h ; p less than 0.05 ) .
C0003578
apneas
C0002575
aminophylline