Alvin Shih, M.D. has been appointed executive vice president of R&D at Retrophin. Dr. Shih will oversee all medical, clinical and research functions. He joins the company from Pfizer, where he served as chief operating officer of the Rare Disease Research Unit, responsible for strategic initiatives and operational functions of the Unit.   Dr. Shih previously served as senior engagement manager for L.E.K. Consulting, LLC, where he provided strategic counsel on M&A transactions and growth ...