CHICAGO, IL - NOVEMBER 17: Northwestern Memorial Foundation in partnership with Children's Memorial Hospital presented the twenty second annual Arthur DeBoer, MD Lectureship in Cardiothoracic Surgery on Thursday, November 17, 2011 in the Pritzker Auditorium of the Feinberg Pavilion at Northwestern Memorial Hospital in Chicago, Illinois. A special dedication of the refurbished Matthews Chapel was also held following this year's lecture by Joseph A Dearani, MD. of the Mayo Clinic. Photo credit: Randy Belice