a provocative finding was that only a small percentage ( 11 % ) of the patients with calla- b precursor cell alls had rearranged tcr genes , while 50 % of the calla+ leukemia patients had at least gamma-chain rearrangement , raising a question as to whether indeed calla- cells are precursors to calla+ cells .
C0007634
cells
C0018956
precursors