1. Department of Hand and Foot Bone Surgery, People’s Hospital of Weifang City in Shandong Province, Weifang, Shandong, China (mainland)
2. Department of Internal Medicine, Madian Hospital of Shouguang City Shandong Province, Weifang, Shandong, China (mainland)
3. Department of Infectious Diseases and Diseases of the Pleura, The Second People’s Hospital of Weifang City, Weifang, Shandong, China (mainland)