Complex sentence: Returned home, she worked in the Institute for Veterinary Control and Research in Bornova, Izmir as chief of laboratory for diagnosis and research (1952-54), when she obtained a diploma becoming an expert in Bacteriology and Epizootiology.
Split into simpler sentences: Returned home, she worked in the Institute for Veterinary Control and Research in Bornova, Izmir as chief of laboratory for diagnosis and research between 1952--1954. In 1954, she obtained a diploma becoming an expert in Bacteriology and Epizootiology.