Complex sentence: Georg Friedrich Nicolai (born: Lewinstein) (1874-1964) was a German physiologist who studied at the University of Berlin, and later practiced medicine at the Charité in Berlin.
Split into simpler sentences: Georg Friedrich Nicolai (born: Lewinstein) (1874-1964) was a German physiologist. He studied at the University of Berlin, and later practiced medicine at the Charité in Berlin.