Jonca Bull, M.D., has been appoint to a dual role as vice president of PPD Consulting, where she will serve as the head of regulatory consulting and as vice president, ophthalmology, within global product development.    Dr. Bull joined the company from the U.S. FDA, where she most recently served as assistant commissioner and director of its Office of Minority Health. Prior to joining the FDA, Dr. Bull was the vice president of U.S. regulatory policy for Novartis, and formerly worked at Genen...