Institution: | 1. Department of Gynecological Endocrinology and Reproductive Medicine, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany 2. Department of Obstetrics and Gynecology Schwetzingen, Schwetzingen, Germany 3. Central Laboratory Ruprecht-Karls-University Heidelberg, Heidelberg, Germany 4. Department of Obstetrics and Gynecology, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil 5. Department of Gynecological Endocrinology and Reproductive Medicine, University Hospital Heidelberg, INF 440, 69210, Heidelberg, Germany
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