title: The authors reply.
authors.affiliation: 1] Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China [2] Institute of Nephrology, Peking University, Beijing, China [3] Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China [4] Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, China.
authors.forename: Shen-Ju
authors.initials: SJ
authors.lastname: Gou
authors.forename: Min
authors.initials: M
authors.lastname: Chen
mesh_terms: D056648:Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis / Q000097:blood* / Q000175:diagnosis*; D003167:Complement Activation; D011415:Complement Factor B / Q000378:metabolism*; D005260:Female; D006801:Humans; D008297:Male; D012720:Severity of Illness Index
chemical_list: D011415:Complement Factor B