Cluster 749: lymphocyte count absolute ul mm registration days cells obtained study Cluster 835: granulocyte count mm absolute ul agc peripheral starting days platelets Cluster 1141: plt platelet count ul mm registration obtained days prior peripheral Cluster 1191: neutrophils ul absolute days obtained cells registration mm randomization count Cluster 1294: alc lymphocyte absolute count ul mm cells blood cell product Cluster 1748: cbc blood count differential complete obtained registration function days prior Cluster 1906: ul lymphocyte count cycle day obtained days treatment study prior Cluster 2331: lymphocyte count mcl mm absolute days total equal enrollment blood