1. Depression of the progesterone levels in women treated with synthetic gestagens after ovulation;Johansson;Acta endocr., Copenh.,1971
2. Luteal phase defects;Jones,1978
3. Progesterone-4-14C and its metabolites in the blood after intravenous injection into women;Thijssen;Acta endocr., Copenh.,1966
4. Disappearance rate of progesterone following simultaneous removal of the corpus luteum and the foeto-placental unit in women;Fylling;Acta endocr., Copenh.,1970
5. Plasma levels of progesterone after vaginal, rectal, or intramuscular administration of progesterone;Nillius;Am. J. Obstet. Gynec.,1971