"A new Northwestern Medicine study shows the attending physician in the intensive care unit could use a copilot, too. The mortality rate plummeted 50 percent when the attending physician in the intensive care unit had a checklist -- a fairly new concept in medicine -- and a trusted person prompting him to address issues on the checklist if they were being overlooked. Simply using a checklist alone did not produce an improvement in mortality."
Simply using the checklist alone didn't work because they weren't using it. That's the funny thing about checklists...So be your doctor's copilot.