Respons steroid sebagai faktor prognostik kesintasan leukemia limfoblastik akut pada anak : Tinjauan khusus pada penilaian imunofenotiping, sitogenetik, molekular, dan minimal residual disease = Steroid response as prognostic factor in survival of childhood acute lymphoblastic leukemia focus on immunophenotyping, cytogenetic, molecular, and minimal residual disease assessments