Authors: Klaus Linde; Andrea Streng; Susanne Jürgens; Andrea Hoppe; Benno Brinkhaus; Claudia Witt; Stephan Wagenpfeil; Volker Pfaffenrath; Michael G Hammes; Wolfgang Weidenhammer; Stefan N Willich; Dieter Melchart Journal: JAMA Date: 2005-05-04 Impact factor: 56.272