1. Spermatozoa and Cervical Mucus;Abarbanel,1946
2. The uterine cervix and isthmus under normal and pathological conditions;Asplund;Acta. Radiol. Suppl.,1952
3. The receptivity of cervical mucus to spermatozoa;Barton;Brit. Med. J.,1946
4. Post-coital Tests;Bishop,1953
5. Human Infertility;Buxton,1958