serum erythropoietin ( epo ) was estimated in 27 children with acute leukaemia ( n = 26 ) or lymphoma ( n = 1 ) at diagnosis ( n = 16 ) , in relation to treatment with high-dose methotrexate ( mtx , n = 11 ) or cytosine arabinoside ( ara-c , n = 8 ) , and during oral maintenance therapy ( n = 10 ) .
C0024299
lymphoma
C0010711
cytosine arabinoside