Complex sentence: He was appointed as a professor of animal physiology at the Norwegian School of Veterinary Science in 1959, and moved to the University of Oslo in 1963, as professor and head of the Oslo University Institute for Thrombosis Research at Rikshospitalet.
Split into simpler sentences: He was appointed as a professor of animal physiology at the Norwegian School of Veterinary Science in 1959. He moved to the University of Oslo in 1963, as professor and head of the University of Oslo Institute for Thrombosis Research at Rikshospitalet.