Affiliation: | 1Department of Otolaryngology and Bronchoesophagology, Rush - Presbyterian - St. Luke's Medical Center, Rush Medical College of Rush University (U.S.A.) 2Department of Diagnostic radiology, Rush - Presbyterian - St. Luke's Medical Center, Rush Medical College of Rush University (U.S.A.) 3Bronchology Section, Division of Otolaryngology and Communicative Disorders, The Children's Memorial Hospital Chicago, IL (U.S.A.) 4Department of Diagnostic Radiology and Nuclear Medicine, Department of Obstetrics and Gynecology, Rush - Presbyterian - St. Luke's Medical Center, Rush Medical College of Rush University, 1753 West Congress Parkway, Chicago IL 60612 (U.S.A.) |