3. Neuroimaging of the brain will be performed by conventional MRI at TEA; this is the routine near-term neuroimaging for preterm infants in our institution. MRI is performed in unsedated infants, using a 3-Tesla platform with sequences that include Sagittal T1 FLAIR, Axial DWI, T2 FRFSE, FLAIR, GRE, and SSFSE, and Coronal SSFSE and 3D SPGR over 30 min. Drs. Barnes and Hintz, who will be masked to the acute phase biomarkers data, will interpret imaging utilizing a central reader form that includes white matter scoring according to a widely used classification system, and data regarding location, number, size, and imaging characteristics of lesions. Dr. Bhutani will correlate these data to the acute biomarkers.