The marrow-blood barrier.
D000818:Animals; D001692:Biological Transport; D001769:Blood; D001792:Blood Platelets; D001853:Bone Marrow; D002465:Cell Movement; D004727:Endothelium / Q000502:physiology; D004920:Erythropoiesis; D006023:Glycoproteins / Q000502:physiology; D006098:Granulocytes; D006410:Hematopoiesis; D006801:Humans; D008264:Macrophages / Q000502:physiology
D006023:Glycoproteins