1. Family planning and public health;Andelman;Int J Fertil,1968
2. Iatrogenic endometrial patterns;Charles;J Clin Path,1964
3. The use of chlormadinone in gynecological practice;Charles;Amer J Obstet Gynec,1964
4. The length and variability of the human menstrual cycle;Chiazze;JAMA,1968
5. Hormonal In hibition of Ovulation;Garcia,1964