Please cite the main reference and the reference for the page that you are using.
aa3r_human,
aa2ar_human,
aa2br_human,
aa1r_human,
cxcr4_human,
smo_human,
hrh2_human,
hrh1_human,
hrh3_human
Aminophylline,
Oxtriphylline,
Theophylline,
Plerixafor,
Sonidegib,
Histamine