The best person to answer you will be Dr Joanne Kurtzberg at the Duke hospital ( https://www.dukemedicine.org/find-doctors-physicians/joanne-kurtzberg-md) . The most important point is to reduce to a minimum the DMSO. I would for sure wash the CBU before infusion, which also let you reduce the volume to a minimum and reduce by that the overload of liquid in the neonate.