“Pretreatment with dipyridamole (0.5 mg/kg) significantly augmented the slope of the ventilatory response to isocapnic progressive hypoxia from 0.35 +/- 0.13 ( SE ) to 0.70 +/- 0.25 l.min-1.%fall of SaO2(-1) (P < 0.01), although there were no significant changes in resting ventilation.”