Connaught Laboraties Limited appointed Brian Underdown to thenewly created position of assistant vice president of research anddirector of immunolgy.Rand Mulford, will assume the duties of chief operating officer ofXytronyx Inc., of San Diego, and Larry Bymaster, the company's CEOand president, will become chairman of the board.GeneMedicine Inc., of Houston, has named Hector Alila, as director ofpharmacology/biology and Karel Petrak as director and SyntexAlliance program leader.VIMRx Pharmaceuticals Inc., of Stamford, Conn., appointed AlfonsoTobia to the position of vice president, research and development.Immutec Corp., of Toronto, added A. Ephraim Diamond to its board ofdirectors.083194A&A

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