ESBL-E	extended-spectrum beta-lactamase producing Enterobacteriaceae.
EOS early	onset neonatal sepsis
PPROM	preterm premature rupture of membranes
ESBL	extended-spectrum beta-lactamase
GBS	Group B Streptococcus
E. coli	Escherichia coli
NICU	neonatal intensive care unit
VLBW	very-low-birthweight
GA	gestational age
APGAR score	appearance, pulse, grimace, activity, and respiration
RDS	respiratory distress syndrome
NEC	necrotizing enterocolitis
IVH	intraventricular hemorrhage
MRI	magnetic resonance imaging
BPD	bronchopulmonary dysplasia
CPAP	continuous positive airway pressure
SD	standard deviation