1. Use of the name “progestin”;Stanczyk;Contraception,2001
2. Position Statement, Role of progestogen in hormone therapy for postmenopausal women: position statement of the North American Meno-pause Society;Menopause,2003
3. Contraceptive hormones and their clinical use;Henzl,1986
4. Introduction: structure-function relationships, metabolism, pharmacokinetics and potency of progestins;Stanczyk;Drugs Today,1996
5. Pharmacokinetics and potency of progestins used for hormone replacement therapy and contraception;Stanczyk;Rev Endocr Metabol Disord,2002