%0 Journal Article %T Assessment of ultrarapid and slow freezing procedures for 1-cell and 4-cell mouse embryos %A Liu,, Jiaen %A , Van den AbbeelEtienne %A , Van SteirteghemAndré C. %J Human Reproduction %V 8 %N 7 %P 1115-1119 %@ 0268-1161 %D 1993-07-01 %I Oxford University Press %~ DeepDyve