Proliferation of erythroid-committed cells in the absence of erythropoietin.
D000818:Animals; D001853:Bone Marrow / Q000502:physiology*; D001854:Bone Marrow Cells; D016026:Bone Marrow Transplantation; D002454:Cell Differentiation; D002455:Cell Division; D004920:Erythropoiesis; D004921:Erythropoietin / Q000502:physiology; D051379:Mice; D011086:Polycythemia / Q000097:blood; D013154:Spleen / Q000166:cytology
D004921:Erythropoietin