Authors: Harald Walach; Holger Bosch; George Lewith; Johannes Naumann; Barbara Schwarzer; Sonja Falk; Niko Kohls; Erlendur Haraldsson; Harald Wiesendanger; Alain Nordmann; Helgi Tomasson; Phil Prescott; Heiner C Bucher Journal: Psychother Psychosom Date: 2008-02-14 Impact factor: 17.659