The origin of the blood cells.
D000818:Animals; D002454:Cell Differentiation; D002465:Cell Movement; D004247:DNA / Q000096:biosynthesis; D005260:Female; D006410:Hematopoiesis; D018380:Hematopoietic Stem Cell Transplantation; D006412:Hematopoietic Stem Cells / Q000166:cytology; D007700:Kinetics; D008297:Male; D051379:Mice; D013936:Thymidine / Q000378:metabolism; D014184:Transplantation, Homologous; D014316:Tritium
D014316:Tritium; D004247:DNA; D013936:Thymidine