By Chui D K   Pugh N D   Walker S M   Gregory L   Shaw R W   in Human Reproduction

ISSN:1460-2350|12|1|191-196

Oxford University Press‎(1997)‎

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By Pundir J.   Chui D. K.   Lipscomb D. W.   in Journal of Obstetrics & Gynaecology

ISSN:1364-6893|28|8|810-811

Informa Healthcare‎(2008)‎

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By Ng E.H.Y.   Chui D.K.C.   Tang O.S.   Ho P.C.   in Fertility and Sterility

ISSN:0015-0282|75|4|711-717

Elsevier‎(2001)‎

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