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1- Department of Health Policy Management and Evaluation, University of Toronto, Faculty of Medicine, Toronto, Canada.
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BMC Complement Altern Med. 2004 Sep 15;4:13.
2- Laboratoires Arkopharma, Carros, France.
Efficacy and tolerance of Harpagophytum procumbens versus diacerhein in treatment of osteoarthritis.
Phytomedicine. 2000 Jun;7(3):177-83.
3- Department of Forensic Medicine, University of Freiburg, Germany, herbal Medicines Research and Education Centre, university of Sydney, NSW, Australia and Department of Anaesthesia, University of Bristol, Bristol Royal Infirmary, UK.
Oxford Journals Medicine & Health Rheumatology 2003 Volume 42, Issue 141-148.
4- Department of Forensic Medicine, University of Freiburg, Albertstr. 9, 79104 Freiburg, Germany.
A 1-year follow-up after a pilot study with Doloteffin for low back pain.
Phytomedicine. 2005 Jan;12(1-2):1-9.
5- Department of Medical Biometry, University of Heidelberg, Germany.
Eur J Anaesthesiol. 1999 Feb;16(2):118-29.
6- School of Health Sciences, Queen Margaret University, Edinburgh EH12 8TS, Scotland.
Effectiveness and safety of Devil's Claw tablets in patients with general rheumatic disorders.
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7- Department of Psychiatry and Psychotherapy, University of Freiburg Medical School, Germany.
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