Fetal and neonatal erythropoiesis.
D000818:Animals; D000831:Animals, Newborn / Q000502:physiology*; D001772:Blood Cell Count; D001853:Bone Marrow / Q000502:physiology; D001854:Bone Marrow Cells; D001856:Bone Marrow Examination; D004920:Erythropoiesis / Q000502:physiology*; D005333:Fetus / Q000502:physiology*; D006168:Guinea Pigs; D006400:Hematocrit; D000860:Hypoxia / Q000097:blood; D008099:Liver / Q000166:cytology / Q000502:physiology; D009392:Nephrectomy; D051381:Rats; D013154:Spleen / Q000166:cytology / Q000502:physiology; D013217:Starvation; D013936:Thymidine / Q000378:metabolism
D013936:Thymidine