Liedong Xu has been appointed executive vice president and chief operations officer at WuXiPRA. Mr. Xu has 22 years of experience in the pharmaceutical and medical device industries, including roles of increasing responsibility at MSD Allergan, Abbott Santen, and Merck Serono.   Also, Jason Wu was appointed executive vice president and chief medical officer. He has 20 years of experience in clinical practice, clinical research, and product development, including management positions at Graceway,...