Stanford, J. L., Brinton, L. A., & Hoover, R. N. (1989). Oral contraceptives and breast cancer: Results from an expanded case-control study. Nature Publishing Group.
Dyfyniad Arddull ChicagoStanford, J. L., L. A. Brinton, and R. N. Hoover. Oral Contraceptives and Breast Cancer: Results From an Expanded Case-control Study. Nature Publishing Group, 1989.
Dyfyniad MLAStanford, J. L., L. A. Brinton, and R. N. Hoover. Oral Contraceptives and Breast Cancer: Results From an Expanded Case-control Study. Nature Publishing Group, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.