Fahrenkrug, J. et al. 2019. VIP and PACAP receptors (version 2019.4) in the IUPHAR/BPS Guide to Pharmacology Database. IUPHAR/BPS Guide to Pharmacology CITE. 2019, 4 (Sep. 2019). DOI:https://doi.org/10.2218/gtopdb/F67/2019.4.