By Ratcliffe K.E.   Anthony F.W.   Richardson M.C.   in Human Reproduction

ISSN:1460-2350|14|6|1549-1554

Oxford University Press‎(1999)‎

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By Aston K.E.   O'Sullivan M.J.B.   Thomas EJ.   Richardson M.C.   in Human Reproduction

ISSN:1460-2350|11|2|336-340

Oxford University Press‎(1996)‎

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