Department of Surgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA. yuriy-gusev@ouhsc.edu|Department of Surgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA. yuriy-gusev@ouhsc.edu|Department of Surgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA. yuriy-gusev@ouhsc.edu|Department of Surgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA. yuriy-gusev@ouhsc.edu|Department of Surgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA. yuriy-gusev@ouhsc.edu