1. Metabolic effects of steroid contraceptives;Briggs;Adv. Steroid Biochem. Pharmacol.,1970
2. Biochemical effects of oral contraceptives;Briggs;Adv. Steroid Biochem. Pharmacol.,1975
3. Annual Research Review: Oral Contraceptives;Briggs,1977
4. Plasma proteins after continuous oral use of a progestogen as a contraceptive;Laurell;Scand. J. clin. Lab. Invest.,1969