DOI: 10.1055/s-00030576

Revista Brasileira de Ginecologia e Obstetrícia / RBGO Gynecology and Obstetrics

References

United Nations Development Programme, United Nations Population Fund, World Health Organization, World Bank.
Long-term reversible contraception: twelve years of experience with the TCu380A and TCu220C.

Contraception 1997;
56 (06) 341-52
DOI: 10.1016/S0010-7824(97)00186-8.

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