TY - GEN AU - Nevalaninen,D E AU - Drier,P A TI - Stem cells: a negative approach SN - 0002-9335 PY - 1978///0628 KW - Hematopoiesis KW - Hematopoietic Stem Cells KW - physiology KW - Humans N1 - Publication Type: Journal Article ER -