PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1671333-1 1991 A physiologic response such as mucin secretion from epithelial cells in vivo may be under the control of several endogenous substances such as acetylcholine, norepinephrine, and vasoactive intestinal peptide (VIP). Norepinephrine 158-172 LOC100508689 Homo sapiens 31-36