Greenberger, J Editorial Comment: Heterogeneity of Bone Marrow Stromal Cells Editorial Comment on Dr. Waller's Paper. [electronic resource] - Hematology (Amsterdam, Netherlands) 1999 - 45-6 p. digital Publication Type: Journal Article ISSN: 1024-5332 Standard No.: 10.1080/10245332.1999.11746429 doi