^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^Sawzdargo M, George SR, Nguyen T, Xu S, Kolakowski LF, O'Dowd BF (Nov 1997). "A cluster of four novel human G protein-coupled receptor genes occurring in close proximity to CD22 gene on chromosome 19q13.1". Biochem Biophys Res Commun. 239 (2): 543–7. doi:10.1006/bbrc.1997.7513. PMID9344866.
Brown AJ, Jupe S, Briscoe CP (2005). "A family of fatty acid binding receptors". DNA Cell Biol. 24 (1): 54–61. doi:10.1089/dna.2005.24.54. PMID15684720.