Chrubasik, S., Junck, H., Breitschwerdt, H., Conradt, C., & Zappe, H. A. (1999). Effectiveness of Harpagophytum extract WS 1531 in the treatment of exacerbation of low back pain: A randomized, placebo-controlled, double-blind study. European journal of anaesthesiology, 16(2), . https://doi.org/10.1046/j.1365-2346.1999.00435.x
Chicago-Zitierstil (17. Ausg.)Chrubasik, Sigrun, H. Junck, Heike Breitschwerdt, Christian Conradt, und Helmut A. Zappe. "Effectiveness of Harpagophytum Extract WS 1531 in the Treatment of Exacerbation of Low Back Pain: A Randomized, Placebo-controlled, Double-blind Study." European Journal of Anaesthesiology 16, no. 2 (1999). https://doi.org/10.1046/j.1365-2346.1999.00435.x.
MLA-Zitierstil (9. Ausg.)Chrubasik, Sigrun, et al. "Effectiveness of Harpagophytum Extract WS 1531 in the Treatment of Exacerbation of Low Back Pain: A Randomized, Placebo-controlled, Double-blind Study." European Journal of Anaesthesiology, vol. 16, no. 2, 1999, https://doi.org/10.1046/j.1365-2346.1999.00435.x.