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IJzerman, Ad P., Jacobien K. Von Frijtag Drabbe Künzel, Jeongho Kim, Qiaoling Jiang, och Kenneth A. Jacobson. "Site-directed Mutagenesis of the Human Adenosine A(2A) Receptor. Critical Involvement of Glu(13) in Agonist Recognition." Biochem Pharmacol 2000.

IJzerman, Ad P., et al. "Site-directed Mutagenesis of the Human Adenosine A(2A) Receptor. Critical Involvement of Glu(13) in Agonist Recognition." Biochem Pharmacol 2000.