Professor, Department of Neurosurgery, Samsung Medical Center, Seoul, Korea
Co-Chair of Skull Base Committee in World Federation of Neurosurgical Societies

Department of Otolaryngology-Head and Neck Surgery, University of Washington School of Medicine, USA
Co-Founder and member, board of directors: Surgical Pathway Innovations, Inc.
Interview committee, Harvard College Admissions

David and Ursel Barnes Professor of Minimally Invasive Neurosurgery
Vice-Chairman, Clinical Research
Director, Anterior Skull Base and Pituitary Surgery
Co-Director Surgical Neuro-oncology
Director, Epilepsy Surgery and Research Laboratory

Assistant Professor of Neurosurgery, University of Salerno, Italy
Director - Laboratory of NeuroAnatomy EBRIS Institute-Salerno, Italy
Head of the NeuroAnatomy Committee Italian Society of Neurosurgery

Neurosurgeon Hospital Clinic de Barcelona
Associate Professor of Human Anatomy Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona
Accredited Researcher (R3A) Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)

Professor, Division of Otolaryngology
Head of Unit, Division of Otorhinolaryngology, Groote Schuur Hospital, Cape Town, South Africa

Chairman of Neurosurgery. Hospital Clínic of Barcelona, Spain
Director of de Skull Base and Pituitary Surgery
Professor of Neurosurgery. Barcelona University
Member of Skull Base Committee of WFNS

Professor, Department of Neurosurgery, Ulsan University College of Medicine
Director, Brain Tumor Center, Asan Medical Center, Seoul, Korea
Executive Member of Korean Skull Base Society
Executive Member of Korean Brain Tumor Society
Executive Member of Korean Society of Endoscopic Neurosurgery