Wikipedia
CFU-GM
CFU-GM (or "GMP", for "granulocyte-macrophage progenitor") is a colony forming unit. It is derived from CFU-GEMM.
The "GM" stands for " granulocyte, monocyte".
It is the precursor for monoblasts and myeloblasts.
Production is stimulated by granulocyte macrophage colony-stimulating factor (GM-CSF).