AS	Aortic stenosis
BPD	Bronchopulmonary Dysplasia
CASP	Critical Appraisal Skills Program
CHD	Congenital heart defects
CoA	Coarctation of the aorta
CI	Confidence interval
HLHS	Hypoplastic left heart syndrome
IVH	Intraventricular hemorrhage
LBW	Low birth weight
MLBW	Moderately low birth weight
NEC	Necrotizing enterocolitis
OCHD	Neonatally operated congenital heart defects
SGA	Small for gestational age
TGA	Transposition of the great arteries
TAPVR	Total anomalous pulmonary venous return
VLBW	Very-low birth weight