title: Structural substrates of bone marrow function.
mesh_terms: D000818:Animals; D001773:Blood Cells / Q000502:physiology*; D001808:Blood Vessels / Q000648:ultrastructure*; D001853:Bone Marrow / Q000098:blood supply / Q000648:ultrastructure*; D002465:Cell Movement; D006168:Guinea Pigs; D007942:Leukemia, Experimental / Q000473:pathology; D015470:Leukemia, Myeloid, Acute / Q000473:pathology; D051379:Mice; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D051381:Rats