(1983). European Journal of Obstetrics,Gynecology and Reproductive biology. New York: Elsevier Biomedical.
1983. European Journal of Obstetrics,Gynecology and Reproductive biology. New York: Elsevier Biomedical.
European Journal of Obstetrics,Gynecology and Reproductive biology. New York: Elsevier Biomedical. 1983.
