APA

Shen H., Spitz M. R., Wang L. E., Hong W. K. & Wei Q. (20010809). Polymorphisms of methylene-tetrahydrofolate reductase and risk of lung cancer: a case-control study. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

Chicago

Shen H, Spitz M R, Wang L E, Hong W K and Wei Q. 20010809. Polymorphisms of methylene-tetrahydrofolate reductase and risk of lung cancer: a case-control study. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

Harvard

Shen H., Spitz M. R., Wang L. E., Hong W. K. and Wei Q. (20010809). Polymorphisms of methylene-tetrahydrofolate reductase and risk of lung cancer: a case-control study. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

MLA

Shen H, Spitz M R, Wang L E, Hong W K and Wei Q. Polymorphisms of methylene-tetrahydrofolate reductase and risk of lung cancer: a case-control study. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology. 20010809.