Complex sentence: Messoud Ashina is a world-known Danish neuroscientist and Clinical Professor of Neurology and Chief Physician at the Department of Neurology, Rigshospitalet, Faculty of Medical and Health Sciences, University of Copenhagen.
Split into simpler sentences: Messoud Ashina is a world-known Danish neuroscientist. He is a Clinical Professor of Neurology and Chief Physician at the Department of Neurology, Rigshospitalet, Faculty of Medical and Health Sciences, University of Copenhagen.