CCB = Calcium channel blockers; CSR = Cochrane systematic review; * Systolic blood pressure ≥160 mmHg and/or diastolic blood pressure ≥110 mmHg; † respiratory distress syndrome, bronchopulmonary dysplasia, retinopathy of prematurity, necrotizing enterocolitis, intraventricular hemorrhage grade 3 or 4, hypoglycemia, bradycardia, seizure, hypotension.
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