Endres, H. G., Böwing, G., Diener, H., Lange, S., Maier, C., Molsberger, A., . . . Tegenthoff, M. (2007). Acupuncture for tension-type headache: A multicentre, sham-controlled, patient-and observer-blinded, randomised trial. Springer-Verlag.

Endres, Heinz G., Gabriele Böwing, Hans-Christoph Diener, Stefan Lange, Christoph Maier, Albrecht Molsberger, Michael Zenz, Andrew J. Vickers, und Martin Tegenthoff. Acupuncture for Tension-type Headache: A Multicentre, Sham-controlled, Patient-and Observer-blinded, Randomised Trial. Springer-Verlag, 2007.

Endres, Heinz G., et al. Acupuncture for Tension-type Headache: A Multicentre, Sham-controlled, Patient-and Observer-blinded, Randomised Trial. Springer-Verlag, 2007.