title: Letter: Bone marrow sinus cell packing.
mesh_terms: D000818:Animals; D001772:Blood Cell Count; D001853:Bone Marrow / Q000503:physiopathology*; D001854:Bone Marrow Cells; D004921:Erythropoietin / Q000494:pharmacology*; D051379:Mice; D011086:Polycythemia / Q000503:physiopathology; D012156:Reticulocytes / Q000503:physiopathology
chemical_list: D004921:Erythropoietin