Oka S, Nakajima K, Yamashita A, Kishimoto S, Sugiura T (November 2007). „Identification of GPR55 as a lysophosphatidylinositol receptor”. Biochemical and Biophysical Research Communications362 (4): 928–34. DOI:10.1016/j.bbrc.2007.08.078. PMID17765871.
Henstridge CM, Balenga NA, Ford LA, Ross RA, Waldhoer M, Irving AJ (January 2009). „The GPR55 ligand L-alpha-lysophosphatidylinositol promotes RhoA-dependent Ca2+ signaling and NFAT activation”. The FASEB Journal : Official Publication of the Federation of American Societies for Experimental Biology23 (1): 183–93. DOI:10.1096/fj.08-108670. PMID18757503.
Oka S, Toshida T, Maruyama K, Nakajima K, Yamashita A, Sugiura T (January 2009). „2-Arachidonoyl-sn-glycero-3-phosphoinositol: a possible natural ligand for GPR55”. Journal of Biochemistry145 (1): 13–20. DOI:10.1093/jb/mvn136. PMID18845565.
Oka S, Nakajima K, Yamashita A, Kishimoto S, Sugiura T (November 2007). „Identification of GPR55 as a lysophosphatidylinositol receptor”. Biochemical and Biophysical Research Communications362 (4): 928–34. DOI:10.1016/j.bbrc.2007.08.078. PMID17765871.
Henstridge CM, Balenga NA, Ford LA, Ross RA, Waldhoer M, Irving AJ (January 2009). „The GPR55 ligand L-alpha-lysophosphatidylinositol promotes RhoA-dependent Ca2+ signaling and NFAT activation”. The FASEB Journal : Official Publication of the Federation of American Societies for Experimental Biology23 (1): 183–93. DOI:10.1096/fj.08-108670. PMID18757503.
Oka S, Toshida T, Maruyama K, Nakajima K, Yamashita A, Sugiura T (January 2009). „2-Arachidonoyl-sn-glycero-3-phosphoinositol: a possible natural ligand for GPR55”. Journal of Biochemistry145 (1): 13–20. DOI:10.1093/jb/mvn136. PMID18845565.