1. Department of Thoracic Surgery, The Second Hospital of Shandong University, Jinan, Shandong, China (mainland)
2. Department of Traumatic Orthopaedic Brotherhood of Surgical, The Second Hospital of Shandong University, Jinan, Shandong, China (mainland)
3. Supply Room, The Second Hospital of Shandong University, Jinan, Shandong, China (mainland)