most common leukemia in adultsdifferent types of leukemia in adultschildhood leukemia in adultsaggressive leukemia in adultslymphoblastic leukemia in adultsleukemia prognosis in adultstypes of leukemia in older adultsacute leukemia in adultsleukemia bruising adultsadult onset leukemiamost common type of leukemia in adultskinds of leukemia in adults