George C M Siontis1, John P A Ioannidis2. 1. Department of Cardiology, Bern University Hospital, Bern, Switzerland. 2. Stanford Prevention Research Center, Stanford University School of Medicine, Stanford, CA 94305, USA; Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA; Department of Health Research and Policy, Stanford University School of Medicine, Stanford, CA 94305, USA; Department of Statistics, Stanford University School of Humanities and Sciences, 1265 Welch Rd., Stanford, CA 94305, USA. Electronic address: jioannid@stanford.edu.