Where a plaintiff alleges a negligently performed medical procedure, he must provide a qualified expert to testify to the applicable standard of care for the procedure before he may present evidence that the defendant’s actions fell below that standard.The 1st District Appellate Court affirmed the decision of Cook County Circuit Judge Ronald J. Bartkowicz.Ferid Okic was diagnosed with gallstones in May 2012. In August 2012, he consulted with Dr. Athanasios Diniotis and shortly afterward on Aug. 18, he had his …