Authors: Christian Offergeld; Christoph Brase; Svetlana Yaremchuk; Irina Mader; Hans Christian Rischke; Sven Gläsker; Kurt W Schmid; Thorsten Wiech; Simon F Preuss; Carlos Suárez; Tomasz Kopeć; Attila Patocs; Nelson Wohllk; Mahdi Malekpour; Carsten C Boedeker; Hartmut P H Neumann Journal: Clinics (Sao Paulo) Date: 2012 Impact factor: 2.365