WBEZ, May 21, 2010 Nurses at the University of Chicago Medical Center have voted to join a new union. The move throws uncertainly into labor relations at the South Side hospital. About 1,300 nurses at U of C will join National Nurses United. The nurses say they may reopen talks about their latest contract, ratified just last month. They say that contract doesn’t do enough to address staffing levels. Tom Magana is a nurse in the intensive care unit. “National Nurses United is for staffing ratios which you get better patient outcomes. And we all here want to take care of our patients in the best way we can.” ... University