Soluble interleukin-2 receptor is a thyroid hormone-dependent early-response marker in the treatment of thyrotoxicosis. - Smallridge,R.C.; Tsokos,G.C.; Burman,K.D.; Porter,L.; Cranston,T.; Sfikakis,P.P.; Solomon,B.L. (Clin Diagn Lab Immunol, 1997)