The University of Wisconsin Medical School and the Medical College of Wisconsin will split an endowment of $600 million made available when Blue Cross/Blue Shield United of Wisconsin became a for-profit company in 2000. The money will be managed by the Wisconsin United for Health Foundation, which has doled out the first $30 million to each school for immediate use. Each college had to present a five-year spending plan, and the money will cover a wide range of issues, including underserved populations, genetic and cancer research, and preventive medicine.