Electron microscopic studies on the mammalian blastocyst in the pre-implantation stages.
D000818:Animals; D001755:Blastocyst / Q000378:metabolism / Q000648:ultrastructure*; D010064:Embryo Implantation; D005260:Female; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D011817:Rabbits; D051381:Rats; D013936:Thymidine / Q000378:metabolism; D014316:Tritium; D014529:Uridine / Q000378:metabolism
D014316:Tritium; D013936:Thymidine; D014529:Uridine