title: The early days of pregnancy. Proceedings of a symposium held as a valedictory meeting for Professor Arnold Klopper. Aberdeen, U.K., September 1987.
mesh_terms: D000818:Animals; D005260:Female; D049673:History, 20th Century; D006801:Humans; D011247:Pregnancy / Q000502:physiology*; D011261:Pregnancy Trimester, First; D012606:Scotland