Media type: E-Article Title: The Concentration of Copper in Human Uterine Secretion During Four Years after Insertion of a Copper-Containing Intrauterine Device Contributor: Larsson, Bertil; Hamberger, Lars imprint: Elsevier BV, 1977 Published in: Fertility and Sterility Language: English DOI: 10.1016/s0015-0282(16)42612-9 ISSN: 0015-0282 Keywords: Obstetrics and Gynecology ; Reproductive Medicine Origination: Footnote: Access State: Open Access