1. Shopland,D.R., Eyre,H.J. and Pechacek,T.F. ( 1991 ) Smoking-attributable cancer mortality in 1991: Is lung cancer now the leading cause of death among smokers in the United States? J. Natl Cancer Inst. , 83 , 1142 –1148.
2. Wei,Q., Cheng,L., Hong,W.K. and Spitz,M.R. ( 1996 ) Reduced DNA repair capacity in lung cancer patients. Cancer Res. , 56 , 4103 –4107.
3. Cheng,L., Eicher,S.A, Guo,Z., Hong,W.K., Spitz,M.R. and Wei,Q. ( 1998 ) Reduced DNA repair capacity in head and neck cancer patients. Cancer Epidemiol. Biomarkers Prev. , 7 , 465 –468.
4. Cleaver,J.E. ( 1968 ) Defective repair replication of DNA in xeroderma pigmentosum. Nature , 218 , 652 –656.
5. Wood,R.D. ( 1996 ) DNA repair in eukaryotes. Annu. Rev. Biochem. , 65 , 135 –167.