Bone marrow: more questions than answers.
D001853:Bone Marrow / Q000502:physiology*; D001854:Bone Marrow Cells; D002462:Cell Membrane / Q000502:physiology; D002633:Chemotaxis; D004912:Erythrocytes / Q000502:physiology; D004920:Erythropoiesis; D006402:Hematologic Diseases / Q000097:blood; D006410:Hematopoiesis; D006801:Humans; D066298:In Vitro Techniques; D007962:Leukocytes / Q000166:cytology / Q000502:physiology*; D013499:Surface Properties