Transforming growth factor-beta, transforming growth factor-beta receptor II, and p27Kip1 expression in nontumorous and neoplastic human pituitaries. - Jin,L.; Qian,X.; Kulig,E.; Sanno,N.; Scheithauer,B.W.; Kovacs,K.; Young,W.F.; Lloyd,R.V. (Am J Pathol, 1997)