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Observational Study
Copyright: ©Author(s) 2026.
World J Orthop. Jun 18, 2026; 17(6): 121358
Published online Jun 18, 2026. doi: 10.5312/wjo.v17.i6.121358
Figure 4
Figure 4 Dose-response curve of cumulative hydrogen inhalation duration and Western Ontario and McMaster Universities Osteoarthritis Index scores. A: Western Ontario and McMaster Universities Osteoarthritis Index (ΔWOMAC) total score; B: ΔWOMAC pain score; C: ΔWOMAC function score; D: ΔWOMAC stiffness score. WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index.


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