1. Low-doses of progestogen as an approach to fertility control;Martínez-Manautou;Fertil. Steril.,1966
2. The role of progestogens in the hormonal control of fertility;Rudel;Fertil. Steril.,1965
3. Chlormadinone acetate as an oral contraceptive;Butler;Lancet,1969
4. Chlormadinone acetate 0.5 mg. A report on its effectiveness in continuous daily use as an oral contraceptive;Christie,1969
5. Daily low-dosage chlormadinone administration for conception control;Connell,1967