By Glazer H.I.   Ledger W.J.   in Reviews in Gynaecological Practice

ISSN:1471-7697|2|1|83-90

Elsevier‎(2002)‎

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By Gerber S.   Bongiovanni A.M.   Ledger W.J.   Witkin S.S.   in European Journal of Obstetrics and Gynecology and Reproductive Biology

ISSN:0301-2115|107|1|74-77

Elsevier‎(2003)‎

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By Sziller I.   Babula O.   Ujhzy A.   Nagy B.   Hupuczi P.   Papp Z.   Linhares I.M.   Ledger W.J.   Witkin S.S.   in Human Reproduction

ISSN:1460-2350|22|7|1861-1865

Oxford University Press‎(2007)‎

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