Neurodevelopmental assessment will be performed by the trained and experienced examiner who will be blinded to the interventions.
Severe neurodevelopmental impairment will be defined having at least one of the following: BSID (IV) composite cognitive score <70, GMFCS level 3-5, blindness (vision <20/200), or hearing impairment requiring hearing aids/cochlear implant. Moderate neurodevelopmental impairment will be defined as having a cognitive composite score 70-84, GMFCS level 2, unilateral blindness (vision/20/200 in only one eye), or hearing impairment with no amplification/cochlear implant.