a 20-second bolus of serotonin ( 5-hydroxytryptamine , 5ht ) , prostaglandin e1 ( pge1 ) or norepinephrine ( ne ) was infused into the pulmonary arteries of lungs isolated from 26-day gestation fetal , newborn ( within 12 h of birth ) , and young adult rabbits .
C0002335
prostaglandin e1
C0032961
gestation