title: [Effect of external environmental factors on the hematopoietic and proliferative activities of human fetal liver cells].
mesh_terms: D002455:Cell Division; D005260:Female; D005333:Fetus / Q000166:cytology; D006412:Hematopoietic Stem Cells / Q000166:cytology*; D006801:Humans; D008099:Liver / Q000166:cytology / Q000196:embryology*; D011247:Pregnancy; D013696:Temperature; D013997:Time Factors