%0 Journal Article %T Repeated mid-cycle tests of in-vitro sperm penetration (Kremer tests) in healthy women during three menstrual cycles %A Jonsson,, B. %A Landgren,, B.-M. %A Eneroth,, P. %J Human Reproduction %V 4 %N 6 %P 670-673 %@ 0268-1161 %D 1989-08-01 %I Oxford University Press %~ DeepDyve