lymphocyte count absolute ul mm registration days cells obtained study granulocyte count mm absolute ul agc peripheral starting days platelets plt platelet count ul mm registration obtained days prior peripheral neutrophils ul absolute days obtained cells registration mm randomization count alc lymphocyte absolute count ul mm cells blood cell product cbc blood count differential complete obtained registration function days prior ul lymphocyte count cycle day obtained days treatment study prior lymphocyte count mcl mm absolute days total equal enrollment blood