Cytidine methylation of regulatory sequences near the π-class glutathione S-transferase gene accompanies human prostatic carcinogenesis. - Lee,W.H.; Morton,R.A.; Epstein,J.I.; Brooks,J.D.; Campbell,P.A.; Bova,G.S.; Hsieh,W.J.; Isaacs,W.B.; Nelson,W.G. (Proc Natl Acad Sci, 1994)