Binding affinities for adenosine ligands
↵aBruns et al. (1986);
↵bSolinas et al. (2005);
↵cSauer et al. (2000);
↵dGao et al. (2003);
↵evan Galen et al. (1994);
↵fKim et al. (1994); h, human recombinant receptors; n.a., not available.