1. Evaluation of ovulation and corpus luteum function using measurements of plasma progesterone;Abraham;Obstet Gynec,1974
2. Etude au microscope électronique de l'endomètre humain dans différentes conditions d'equilibre hormonal;Ancla;Arch Path,1967
3. Luteal phase deficiency and infertility: Difficulties encountered in diagnosis and treatment;Annos;Obstet Gynec,1980
4. Amenorrhoea associated with retention of fertility;Bengtsson;Acta obstet gynec scand,1959
5. The atypical secretory phase;Buxton;Engle: Menstruation and its disorders,1950