“…,oxytocin infusion and mammary nerve stimulation in anesthetized rats raised VIP levels significantly … and 10 +/- 2 to 43 +/- 8, 45 +/- 16 and 53 +/- 22 pM , respectively, whereas oxytocin levels rose from 111 +/- 34 to 294 +/- 66 pM … and to a peak value of 500 +/- 70 pM after oxytocin infusion.”