Stephen SennStephen Senn has worked as a statistician and as an academic in Switzerland, Scotland, England and Luxembourg. He is the author of Statistical Issues in Drug Development (1997, 2007, 2021) and Cross-over Trials in Clinical Research (1993, 2002). He ws awarded the Bradford Hill Medal of the Royal Statistical Society in 2009 and holds honorary chairs at the University of Sheffield and at the University of Edinburgh. Read More Read Less