Complex sentence: Dr Parsonnet grew up in Newark, NJ and attended Weequahic High School before enrolling at Cornell University, he left Cornell to join the U.S. Navy Reserve during WWII.
Split into simpler sentences: Dr Parsonnet grew up in Newark, NJ and attended Weequahic High School before enrolling at Cornell University. He left Cornell to join the U.S. Navy Reserve during WWII.