%0 Journal Article %T Human chorionic gonadotrophin and steroid concentrations in follicular fluid: the relationship to oocyte maturity and fertilization rates in stimulated and natural in-vitro fertilization cycles %A Enien,, W.M. %A Sahwy,, S.EI. %A Harris,, C.P. %A Seif,, M.W. %A Elstein,, M. %J Human Reproduction %V 10 %N 11 %P 2840-2844 %@ 0268-1161 %D 1995-11-01 %I Oxford University Press %~ DeepDyve