in the double-layer agar culture system , bone marrow and splenic cells of c- and g-mice produced a maximal number of colonies containing adequate amounts of human urinary csf in the upper layer when c-mouse bone marrow cells were added to the lower layer , while these four sources of cells produced a moderate or minimal number of colonies when splenic cells of c- and g-mice or g-mouse bone marrow cells were added to the lower layer .
C0005953
bone marrow
C0009392
csf