The procedures for initiating lipid emulsions in neonates will follow the usual protocol as per NICU guidelines. On DOL-2, an order for 20% soybean oil lipid emulsion will be written by a physician or designated licensed assistant as per protocol. The Pharmacy Department will receive the order, and compound and dispense it in an appropriately sized syringe. Patients will receive lipids taken from either glass bottles or plastic bags according to a pre-assigned randomization scheme.