Authors
Kunzler A1, Meerpohl J2, Weber M1, Ziegler A
1Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
2Institute for Evidence in Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Cochrane Germany, Cochrane Germany Foundation, Freiburg, Germany