Complex sentence: The drug was first discovered by scientists including Dr. Axel Ullrich and Dr. H. Michael Shepard at UCLA's Jonsson Comprehensive Cancer Center, Dr. Dennis Slamon subsequently worked on trastuzumab's development.
Split into simpler sentences: The drug was first discovered by scientists including Dr. Axel Ullrich and Dr. H. Michael Shepard. At UCLA's Jonsson Comprehensive Cancer Center, Dr. Dennis Slamon subsequently worked on trastuzumab's development.