Expression of interleukin (IL)-2 and IL-7 receptors discriminates between human regulatory and activated T cells. - Seddiki,N.; Santner-Nanan,B.; Martinson,J.; Zaunders,J.; Sasson,S.; Landay,A.; Solomon,M.; Selby,W.; Alexander,SI.; Nanan,R.; Kelleher,A.; Fazekas de St Groth,B. (J Exp Med, 2006)