By Heger-Mahn D   Warlimont C   Faustmann T   Gerlinger C   Klipping C   in The European Journal of Contraception and Reproductive Health Care

ISSN:1473-0782|9|3|173-181

Informa Healthcare‎(2004)‎

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By Duijkers I.J.M.   Klipping C.   in European Journal of Obstetrics and Gynecology and Reproductive Biology

ISSN:0301-2115|93|1|13-17

Elsevier‎(2000)‎

Access to resources Favorite 2.61514

By Erb K.   Klipping C.   Duijkers I.   Pechstein B.   Schueler A.   Hermann R.   in Fertility and Sterility

ISSN:0015-0282|75|2|316-323

Elsevier‎(2001)‎

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