^Sharif NA, Kelly CR, Crider JY, Davis TL. Serotonin-2 (5-HT2) receptor-mediated signal transduction in human ciliary muscle cells: role in ocular hypotension. Journal of Ocular Pharmacology and Therapeutics. December 2006, 22 (6): 389–401. PMID 17238805. doi:10.1089/jop.2006.22.389.