Vasoactive intestinal polypeptide (VIP) as a possible neurotransmitter involved in penile erection.
D000818:Animals; D002522:Chlorocebus aethiops; D005768:Gastrointestinal Hormones / Q000502:physiology*; D008297:Male; D009130:Muscle, Smooth; D010413:Penis / Q000294:innervation*; D011817:Rabbits; D014660:Vasoactive Intestinal Peptide / Q000502:physiology*
D005768:Gastrointestinal Hormones; D014660:Vasoactive Intestinal Peptide