Presence of neuropeptide Y and its messenger ribonucleic acid in human islets: evidence for a possible paracrine role. - Bennet,W.M.; Wang,Z.L.; Jones,P.M.; Wang,R.M.; James,R.F.; London,N.J.; Ghatei,M.A.; Bloom,S.R. (J Clin Endocrinol Metab, 1996)