Author:
Klaus Hanna,Goebel Joan M.,Muraski Beatrice,Egizio Mary Therese,Weitzel Davey,Taylor Ruth S.,Fagan Mary U.,Ek Kay,Hobday Kathleen
Subject
Obstetrics and Gynecology,Reproductive Medicine
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4. Cervical mucus and identification of the fertile phase of the menstrual cycle;Flynn;Br J Obstet Gynaecol,1976
5. Fourth International Congress of Billings Method;Hilgers,1978
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