%0 Journal Article %T DEVELOPMENT OF TWO-CELL MOUSE EMBRYOS IN THE ABSENCE OF A FIXED-NITROGEN SOURCE %A CHOLEWA, JUDITH A. %A WHITTEN, W. K. %J Reproduction %V 22 %N 3 %P 553-555 %@ 1470-1626 %D 1970-08-01 %I Bioscientifica Ltd %~ DeepDyve