Efficacy and Safety of Zhuanggu Joint Capsules in Combination with Celecoxib in Knee Osteoarthritis: A Multi-center, Randomized, Double-blind, Double-dummy, and Parallel Controlled... oleh Xian-Long Zhang, Jing Yang, Liu Yang, Jian-Guo Liu, Xin-Yu Cai, Wei-Ming Fan, Xue-Qing Yun, Jin-Zhong Ma, Xi-Sheng Weng