most common leukemia in adultschildhood leukemia in adultsaggressive leukemia in adultsdiagnosis of leukemia in adultslymphoblastic leukemia in adultsleukemia prognosis in adultstypes of leukemia in older adultsacute leukemia in adultsleukemia bruising adultsmost common type of leukemia in adultskinds of leukemia in adultsforms of leukemia in adults