ALL	acute lymphoblastic leukemia
BFM	Berlin–Frankfurt–Münster
CNA	copy number alteration
CNS	central nervous system
EFS	event-free survival
FC	flow cytometry
FISH	fluorescence in situ hybridization
HeH	high hyperdiploidy
HR	high risk
iAMP21	intrachromosomal amplification of chromosome 21
IR	intermediate risk
MLPA	multiplex ligation-dependent probe amplification
MPAL	mixed phenotype acute leukemia
MRD	minimal residual disease
NGS	next-generation sequencing
OS	overall survival
Ph-like	PhilaDelphia chromosome-like
RT-PCR	real-time polymerase chain reaction
SR	standard risk
WBC	white blood cell
WHO	World Health Organization