Affiliation: | Hong-Sheng Sun, Qing-Rui Yang, Yan-Yan Bai, Nai-Wen Hu, Dong-Xia Liu, Department of Rheumatology and Immunology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong Province, ChinaCheng-Yong Qin, Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong Province, China |