Institutions:
1 Cheeloo College of Medicine, Shandong University, Jinan 250012,
Shandong, China
2 Shandong First Medical University, Jinan 250117, Shandong, China
3 Department of Rheumatology and Immunology, Shandong Provincial
Hospital, Cheeloo College of Medicine, Shandong University, Jinan
250021, Shandong, China
4 Department of Rheumatology and Immunology, Shandong Provincial
Hospital, Affiliated to Shandong First Medical University, Jinan 250021,
Shandong, China