Mike Colias, Crain’s, May 21, 2010 Nurses at the University of Chicago Medical Center are bolting an Illinois-based union for the nation’s largest nursing alliance, and they intend to use their newfound clout to demand changes to a recently inked labor contract. U of C’s 1,300 registered nurses voted Thursday to be represented by the Washington, DC-based National Nurses United, leaving the incumbent Illinois Nurses Association. The U of C nurses “will use the clout of their new national union to press for critical patient safety changes at the medical center, including improved patient staffing and an end to scheduling practices that undermine patient-care conditions” ... U