Complex sentence: John Kurtzke was a pioneering neuroepidemiologist and Professor of Neurology at Georgetown University who is best known for his creation of the Expanded Disability Status Scale and for his research on multiple sclerosis (MS).
Split into simpler sentences: John Kurtzke was a pioneering neuroepidemiologist and Professor of Neurology at Georgetown University. He was best known for his creation of the Expanded Disability Status Scale and for his research on multiple sclerosis (MS).