Takahashi K, Umeda S, Shultz LD, Hayashi S, Nishikawa S. Effects of macrophage colony-stimulating factor (M-CSF) on the development, differentiation, and maturation of marginal metallophilic macrophages and marginal zone macrophages in the spleen of osteopetrosis (op) mutant mice lacking functional M-CSF activity. J Leukoc Biol. 1994 May; 55(5):581-8.