Endpoint study
#1: Wang, You-Zhi., Sun, Shi-Qin., Zhou, Ya-Bin. Extract of the dried heartwood of Caesalpinia sappan L. attenuates collagen-induced arthritis. JOURNAL OF ETHNOPHARMACOLOGY, 2011, vol. 136, no. 1, p. 271–278. DOI: 10.1016/j.jep.2011.04.061.
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