Institution: | 1. Weifang Medical University, 261053 Weifang, China
2. Qianfoshan Hospital of Shandong Province & Shandong Academy of Medical Sciences, Ji'nan 250002, China
3. Department of Health Care, Weifang People's Hospital, Weifang 261053, China
4. Department of General Practice, Qianfoshan Hospital of Shandong Province, Ji'nan 250002, China |