Norbert W. Bischofberger, Ph.D. has been named executive vice president, R&D and chief scientific officer and John F. Milligan, Ph.D. has been named chief operating officer, Gilead Sciences, Inc. Dr. Bischofberger joined the company in 1990 from Genentech, where he held roles of increasing responsibility within R&D, and was most recently appointed executive vice president, R&D in 2000. In his new role, Dr. Bischofberger will oversee all aspects of Gilead’s R&D efforts...