title: [41st meeting of the Japan Society of Obstetrics and Gynecology. Okayama, 1-4 April 1989. Abstracts].
mesh_terms: D000818:Animals; D005260:Female; D005831:Genital Diseases, Female; D006801:Humans; D011247:Pregnancy / Q000502:physiology*; D011248:Pregnancy Complications