?:authorAffiliation
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[\'Department of Surgery, Firoozgar General Hospital, Iran University of Medical Sciences, Tehran, Iran.\', \'Department of Virology, Firoozgar General Hospital, Iran University of Medical Sciences, Tehran, Iran.\', \'Shahid Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.\', \'Department of Pathology, Firoozgar General Hospital, Iran University of Medical Sciences, Tehran, Iran.\', \'Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.\', \'Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, Ohio.\']
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