Tumor related clones were observed in the CB and CC sub-populations but also in the PGC and ME sorted cells (S3 Table); this result is consistent with the presence of CD10 positive cells (since CD10 is a standard immunodiagnostic marker of FL) not only in the GC compartment but also in the PGC and ME sorted populations (S1E Fig). Here, MME is linked to neoplasm.