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Pua YH, Liang Z, Ong PH, Bryant AL, Lo NN, Clark RA.Pua YH, et al.Arthritis Care Res (Hoboken). 2011 Dec;63(12):1706-14. doi: 10.1002/acr.20615.Arthritis Care Res (Hoboken). 2011.PMID: 21905251Free article.Clinical Trial.