%0 Journal Article %T Fever of unknown origin in China: evaluation of 918 cases during a ten-year-period of study %A Meng Qing-yi %A Ma Jing-ling %J BMC Emergency Medicine %D 2012 %I BioMed Central %R 10.1186/1471-227x-12-s1-a2 %U http://www.emac-beijing.org/