Nurses at UChicago Medicine call off strike Ryan Voyles 10 months ago Nurses at the University of Chicago Medical Center said Monday they have called off a one-day strike planned for this week after the two sides reached a tentative agreement on a new contract.To access this content, you must purchase 1 Year Health News Illinois Subscription or 1 Year Group Subscription - Up to 5 Users, or log in if you are a member.