Complex sentence: Shatz received a tenured position in the basic sciences at Stanford Medical School and later returned to Harvard to head the university's Department of Neurobiology; in both cases, Shatz was the first woman hired for the position.
Split into simpler sentences: Shatz received a tenured position in the basic sciences at Stanford Medical School and later returned to Harvard to head the university's Department of Neurobiology. In both cases, Shatz was the first woman hired for the position.