And CT of CYP24A1 rs6068816 polymorphisms was important in disease risk assessment, Xu et al. also revealed that the CT genotype of CYP24A1 rs6068816 is related to an increased risk of lung cancer in Chinese female nonsmokers (Qu et al., 2019), which indicates that the same polymorphism may involve in variant human diseases. The gene discussed is CYP24A1; the disease is lung cancer.