To compare the frequency distribution of alleles in lung cancer patients and normal subjects. And assess the risk of lung cancer in a population living in northern Thailand .
To compare the distribution of frequencies of the Al League in normal people and patients with lung cancer and assess the risk of lung cancer in populations that live in northern Thai .
to compare the distribution of the frequency of lung cancer patients in อัลลี, and normal people and evaluate the risk of lung cancer in a group of Thai population living in the northern region