acute lymphocytic leukemia prognosisadult acute lymphocytic leukemiaacute leukemia treatment optionsacute lymphocytict cell acute lymphocytic leukemiaacute monocytic leukemia symptomsacute myeloblastic leukemiaacute lymphocyctic leukemiaacute myeloid leukemiaacute myelogenous leukemiaacute leukemia diagnosisacute leukemia prognosis