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Stableforth, P., D C. Montgomery, E. Wilson, W G. Churchill, K M. Dormandy, and R M. Hardisty. "Effect of Oral Contraceptives On Factor VIII Clotting Activity and Factor VIII Related Antigen in Normal Women." J Clin Pathol 1975.

Stableforth, P., et al. "Effect of Oral Contraceptives On Factor VIII Clotting Activity and Factor VIII Related Antigen in Normal Women." J Clin Pathol 1975.