Chief of Pediatric Hematology Oncology University of Oklahoma Health Sciences | Oklahoma City, Oklahoma University of Oklahoma Health Sciences has retained Isaacson, Miller to assist in the search for the Chief of Pediatric Hematology Oncology. Jay Torio is leading this search with Afi Tettey-Fio and Maria Peña. More information to follow. APPLY NOMINATE contact Afi Tettey-Fio