Lanzhou University - Evidence-Based Social Science Research Center, Lanzhou University - Evidence-Based Social Science Research Center, Imperial College London, Saint-Joseph University and Hotel-Dieu de France Hospital - Orthopedic Surgery Department, Queen's University - Division of Radiation Oncology, The University of Osaka, Monash University, The University of Hong Kong, Lanzhou University, Lanzhou University, Chengdu University of Traditional Chinese Medicine, Lanzhou University, Lanzhou University, Lanzhou University, Swansea University - Swansea University Medical School, Università degli Studi di Milano-Bicocca, University of Lisbon, Lanzhou University - Evidence-Based Social Science Research Center, Singapore National Eye Centre, Lanzhou University, University of Science and Technology of China (USTC) and Lanzhou University - Evidence-Based Medicine Center