1: (a) Patient requires cardiac and/or pulmonary assistance with one or more of the following devices in place: total artificial heart, left and/or right ventricular assist system, intro-aortic balloon pump, ventilator; (b) patient is in intensive care unit and requires inotropic agents to maintain cardiac output; or (c) patient is less than 6 months of age.2: All other active registrations.7: Temporarily inactive.