Clinical Analysis of 4 243 Patients with Fever of Unknown Origin 
LI Tong,WANG Rongying,HE Zhenyin,WANG Weijie,WANG Yayi,ZHANG Min
Chinese General Practice . 2019, (2): 224 -227 .  DOI: 10.12114/j.issn.1007-9572.2018.00.025