Synonyms : IL-21 Receptor, IL21R, Interleukin-21 Receptor, Receptor, Interleukin-21, IL 21 Receptor, IL 21 Receptors, Interleukin 21 Receptor, Interleukin 21 Receptors, Receptor, IL-21, Receptor, Interleukin 21, Receptors, IL-21, Receptors, Interleukin 21