Task: Named Entity Recognition
Input (English):  X - chromosome inactivation patterns of CD19 + B cells were highly concordant with CD3 + T cells except for two patients ( one RA , one CMML ) with monoclonal B and polyclonal T lymphocytes , therefore suggesting a clonal mutation in a progenitor common to the myeloid and B - lymphoid lineages or the coexistence of MDS and a B - cell disorder in these particular patients .
Output (English): X - chromosome