By Blode H.   Foidart J.-M.   Heithecker R.   in The European Journal of Contraception and Reproductive Health Care

ISSN:1473-0782|6|3|167-171

Informa Healthcare‎(2001)‎

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By Sillem M.   Schneidereit R.   Heithecker R.   Mueck A. O.   in The European Journal of Contraception and Reproductive Health Care

ISSN:1473-0782|8|3|162-169

Informa Healthcare‎(2003)‎

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By Ludicke F.   Johannisson E.   Helmerhorst F.M.   Campana A.   Foidart J.-M.   Heithecker R.   in Fertility and Sterility

ISSN:0015-0282|76|1|102-107

Elsevier‎(2001)‎

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