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Randomized Controlled Trials
Research Design
Reproducibility of Results
Treatment Outcome
Herbal Medicine
Complementary Therapies
Evidence-Based Medicine
Phytotherapy
Low Back Pain
Back Pain
Harpagophytum
Tripterygium
Primula
Quality Control
Consumer Product Safety
Publishing
Research Peer Review
gamma-Linolenic Acid
Plant Extracts
Decision Making
Co-Publications
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7
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