Complex sentence: Mary Fenner Dallman (born April 11,1935) is an American Neuroendocrinologist who was the first tenure-track female faculty member in the Department of Physiology at the University of California, San Francisco where she worked for 38 years before retiring in 2007.
Split into simpler sentences: Mary Fenner Dallman (born April 11,1935) is an American neuroendocrinologist. She is now professor emerita at University of California, San Francisco, where she was the first tenure-track female faculty member in the Department of Physiology and worked for 38 years before retiring in 2007.