The class is made up of persons or entities in the U.S. and Puerto Rico who, from Feb. 10, 2000, to Dec. 31, 2015, purchased or paid for inpatient hospital services directly from NorthShore University HealthSystem, formerly known as Evanston Northwestern Healthcare, or its wholly-owned hospitals, predecessors, subsidiaries or affiliates other than those acquired as a result of the merger with Rush North Shore Medical Center.
