in normal mice , study of mmc precursors ( mmc-p : cells giving rise to mmc colonies in the presence of il-3 ) show that : ( a ) their frequency , judged by limiting dilution is very high in bone marrow ( bm ) and gut , and very low in most lymphoid organs and thoracic duct lymph ( tdl ) ;
C0018956
mmc precursors
C0007634
cells