By Kerssen A.   Evers I. M.   de Valk H. W.   Visser G. H. A.   in Journal of Maternal-Fetal and Neonatal Medicine

ISSN:1476-4954|13|5|309-313

Informa Healthcare‎(2003)‎

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By Thiolet J. M.   Jourdan-Da Silva N.   Reggiani A.   De Valk H.   Coignard B.   Weill F. X.   in Clinical Microbiology & Infection

ISSN:1198-743x|17|6|915-918

Blackwell Publishing‎(2011)‎

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By Veltman-Verhulst S.M.   van Haeften T.W.   Eijkemans M.J.C.   de Valk H.W.   Fauser B.C.J.M.   Goverde A.J.   in Human Reproduction

ISSN:1460-2350|25|12|3123-3128

Oxford University Press‎(2010)‎

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