the effects of naloxone and propranolol on cardiac arrhythmias and durations from respiratory arrest to ventricular asystole and cardiac standstill were studied in unanaesthetized young rats induced to suffer respiratory arrest and exhibit ventricular fibrillation ( vf ) by a modified chloroform hypoxia technique .
C0003811
cardiac arrhythmias
C0042510
ventricular fibrillation