Becirovic, Elvir, Martin Biel, Verena Hammelmann, Franz Hofmann, and U. Benjamin Kaupp. “Cyclic Nucleotide-Regulated Channels (version 2019.4) in the IUPHAR/BPS Guide to Pharmacology Database”. IUPHAR/BPS Guide to Pharmacology CITE 2019, no. 4 (September 16, 2019). Accessed April 4, 2020. http://journals.ed.ac.uk/gtopdb-cite/article/view/3223.