Genetic risk and carcinogen exposure: a common inherited defect of the carcinogen-metabolism gene glutathione S-transferase M1 (GSTM1) that increases susceptibility to bladder cancer. - Bell,D.A.; Taylor,J.H.; Paulson,D.F.; Robertson,C.N.; Mohler,J.L.; Lucier,G.W. (J Natl Cancer Inst, 1993)