GlaxoSmithKline (NYSE:GSK) has fired the head of its Chinese R&D unit, Jingwu Zhang, following an investigation into allegations of data fabrication in a 2010 scientific paper on multiple sclerosis (NYSE:MS) that was published in Nature Medicine. Another scientist has resigned, while GSK has put another three on "administrative leave" pending a final review. SA author Derek Lowe has lots of questions, including "how many more things have been faked as well?" (PR)