the determinations made prior to and after training included the peripheral blood erythrocyte ( er ) and reticulocyte ( ret . ) count , the hemoglobin concentration ( hb ) and packed cell volume ( pcv ) and , determined by spectrophotometric methods , the activity of pyruvate kinase ( pk ) , glucose-6-phosphate dehydrogenase ( g6pd ) and glutathione reductase ( gr ) .
C0014792
peripheral blood erythrocyte
C0019046
hb