From the *Institut für Physiologie, Freie Universität Berlin,
the †Orthopädisches Rückentherapiezentrum, Berlin,
the ‡Klinik für Anästhesiologie und Operative Intensivmedizin, Pain Centre, Berlin,
the §Orthopädie-Praxis, Berlin,
and the ∥Center for Muscle and Bone Research, University Hospital Benjamin Franklin, Freie Universität Berlin, Germany.
Acknowledgment date: July 31, 2001.
First revision date: November 16, 2001.
Acceptance date: February 20, 2002.
Address reprint requests to
Jörn Rittweger, MD
Institut für Physiologie
Freie Universität Berlin
Arnimallee 22, 14195
E-mail: [email protected]
Device status category: The device(s)/drug(s) is/are FDA-approved or approved by corresponding national agency for this indication.
Conflict of interest category: No funds were received in support of this work. No benefits in any form have been or will be received from a commercial party related directly or indirectly to the subject of this manuscript.