[VIP].
D000818:Animals; D005768:Gastrointestinal Hormones / Q000032:analysis*; D011863:Radioimmunoassay / Q000379:methods*; D014660:Vasoactive Intestinal Peptide / Q000032:analysis*
D005768:Gastrointestinal Hormones; D014660:Vasoactive Intestinal Peptide