The Therapeutic Effect of Huo Xue Tong Luo Capsules in Association Research Circulation Osseous (ARCO) Stage II Osteonecrosis of the Femoral Head: A Clinical Study With an Average Follow-up Period of 7.95 Years. - He XM; He MC; Yang P; Zhang QW; Chen ZQ; He W; Wei QS (Frontiers in pharmacology, 2021)