%0 Journal Article %T Differential sperm performance as judged by the zona-free hamster egg penetration test relative to differing sperm penetration techniques %A Chan,, S.Y.W. %A Tucker,, M.J. %J Human Reproduction %V 7 %N 2 %P 255-260 %@ 0268-1161 %D 1992-02-01 %I Oxford University Press %~ DeepDyve