%0 Journal Article %T Purification and properties of a major, low molecular weight protein released by the trophoblast of sheep blastocysts at Day 13–21 %A Godkin, J. D. %A Bazer, F. W. %A Moffatt, J. %A Sessions, F. %A Roberts, R. M. %J Reproduction %V 65 %N 1 %P 141-150 %@ 1470-1626 %D 1982-05-01 %I Bioscientifica Ltd %~ DeepDyve