 The 59th MDW is home to the Critical Care Air Transport Team Pilot Unit (CCATT), which has executive management over 118 active-duty, Guard and Reserve teams.The wing also has the Defense Department's largest Blood Donor Center, a Warfighter Refractive Surgery Center, and Extracorporeal Life Support (ECLS) capability.The ECLS offers the only global transport option in the world, providing partial heart-lung bypass to eligible adults, infants, and children suffering from severe cardiopulmonary failure.