Avanish Vellanki has been appointed chief business officer and Gregory K. Chow has been named chief financial officer at Lorus Therapeutics, Inc. Mr. Vellanki will manage global business development, licensing and corporate strategy. Mr. Chow will have global responsibility for corporate finance and accounting functions. Both Mr. Vellanki and Mr. Chow will report to William G. Rice, Ph.D., chairman and chief executive officer of Lorus.   Mr. Vellanki mostly recently served as senior vice preside...