Harvey, R J, Lobron, C, Reinhardt-Maelicke, S, Maelicke, A, Darlison, M G, "The embryonal carcinoma cell line PCC7-S-AzaR: 21.21: 21.2 (clone 1009) expresses a functional GABA: 21.2A: 21.2 receptor comprising the α5, β3 and γ3 subunits: 21.2", Behavioural Pharmacology, 1995