CHICAGO - There is little room for error — if any — when healthcare workers are treating patients.

A recent study by Johns Hopkins Medicine found nearly 800,000 U.S. patients "die or are permanently disabled" every year due to a diagnostic error.

In a Fox Chicago special report , Dawn Hasbrouck takes a look at how one Chicago university is helping future medical professionals prepare not to make mistakes.

Learning by making mistakes

What we know:

Ally Andresen is a nursing graduate student. While it may look like she's in a hospital delivery room, she's really in a classroom at UIC. It’s not just any classroom – it’s a simulation lab — where the work is as real as it gets.

"I really enjoy it," Andresen said. "I think it's a really great tool to help prepare us for going o

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