1. Daily progestogen for contraception: A clinical study;Martinez-Manautou;Br. Med. J.,1967
2. Contraceptive action of continuous low dose of norgestrel;Foss;Br. Med. J.,1968
3. Effects of continuous daily administration of 0.03 mg of d-norgestrel on the plasma levels of progesterone and the urinary excretion of oestrogens;Larsson-Cohn;Acta. Endocr. (Kbh),1971
4. Metabolic clearance rate of chlormadinone acetate from the blood of women after a single intravenous injection;Dugwekar,1971
5. Metabolism and tissue uptake of estrogen in women with advanced carcinoma of the breast;Pearlman;J. Clin. Endocr.,1969