This notice describes a correction to the above paper.

In the author biographies of this article, it was incorrectly stated that Eva Becker was a Doctor of Science. This should have been attributed to Gerta Rücker.

The correct author biographies are below:

Eva Becker, Physician, Department of Psychosomatic Medicine and Psychotherapy, Faculty of Medicine and Medical Center, University of Freiburg, Germany.

Gerta Rücker, DSc, Statistician, Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center, University of Freiburg, Germany.