title: Haemopoietic cells as tools for understanding interactive events: an embryologist's view.
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D002467:Cell Nucleus / Q000502:physiology; D002645:Chickens; D003593:Cytoplasm / Q000502:physiology; D004912:Erythrocytes / Q000502:physiology; D006410:Hematopoiesis; D008214:Lymphocytes / Q000166:cytology / Q000276:immunology; D051379:Mice; D013950:Thymus Gland / Q000196:embryology