Retinoic acid-induced stimulation of sodium iodide symporter (NIS) expression and cytotoxicity of radioiodine in prostate cancer cells. - Spitzweg,C.; Scholz,I.V.; Bergert,E.R.; Tindall,D.J.; Young,C.YF.; Göke,B.; Morris,J.C. (Endocrinology, 2003)