Reports

Systemic Absorption of Intrauterine Copper

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Science  28 Jul 1972:
Vol. 177, Issue 4046, pp. 358-360
DOI: 10.1126/science.177.4046.358

Abstract

A comparison of the various effects, in rats, of intrauterine insertion of copper-64 or copper-67 wire with the effects of intraperitoneal injection of copper sulfate solutions has shown that copper ions, dissolved from the wire, are locally active contraceptively and, in part, systemically absorbed.

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