title: Two erythropietic microenvironments and two larval red cell lines in bullfrog tadpoles.
mesh_terms: D000818:Animals; D004912:Erythrocytes / Q000502:physiology* / Q000648:ultrastructure; D004920:Erythropoiesis; D007668:Kidney / Q000166:cytology / Q000502:physiology; D007814:Larva / Q000502:physiology; D008099:Liver / Q000166:cytology / Q000502:physiology; D008855:Microscopy, Electron, Scanning; D009994:Osmolar Concentration; D011892:Rana catesbeiana