in animals treated at 2 p.m. on day 2 of pregnancy a dose-related reduction of the cell numbers was found for both icm and btcn in morphologically normal late blastocysts ( day 4 , 8 a.m. ) at cap doses of 20-60 mg/kg which did not induce embryonic death before implantation but did later during organogenesis .
C1283994
icm
C1281743
blastocysts