1. Department of Medical Microbiology, School of Basic Medical Science, Shandong University Jinan Shandong China
2. Department of Breast Thyroid Surgery Shandong Provincial Hospital, Shandong University Jinan Shandong China
3. Department of Biostatistics, School of Public Health, Shandong University Jinan Shandong China
4. Department of Gastroenterology Qilu Hospital of Shandong University Jinan Shandong China
5. Department of Burn Linqu County People's Hospital Weifang Shandong China