1.1. Analysis.
Comparison 1: Continuous infusion versus bolus administration, Outcome 1: Pain assessed with visual analogue scale (VAS) during the administration of selected drugs (neonates from 0 to 4 weeks)
Comparison 1: Continuous infusion versus bolus administration, Outcome 1: Pain assessed with visual analogue scale (VAS) during the administration of selected drugs (neonates from 0 to 4 weeks)