AKI	acute kidney injury
AUC	area under the curve
BMI	body mass index
eCCl	estimated creatinine clearance
KDIGO	Kidney Disease: Improving Global Outcomes
NICU	neonatal intensive care unit
NMR	nuclear magnetic resonance
PCA	principle component analysis
PICU	pediatric intensive care unit
PLS-DA	partial least squares discriminant analysis
QC	quality control
ROC	receiver operating characteristic
SDS	standard deviation score
VIP	variable importance in projection