**                            Zhang et al[@b00-ott-0-0000]           0000   HB            People's Republic of China   Asians       Lung neoplasms   000         000      000      00       000         000      000      00       0.00          0       PCR-RFLP   Hsia et al[@b00-ott-0-0000]            0000   HB            People's Republic of China   Asians       Lung neoplasms   000         000      000      00       000         000      000      00       \<0.00        0       PCR-RFLP   Colakogullari et al[@b00-ott-0-0000]   0000   HB            Turkey                       Caucasians   Lung neoplasms   00          0