title: Combining apples and oranges obtains common features of fruit.
authors.affiliation: Department of Critical Care Medicine, Jinhua Municipal Central Hospital, Jinhua Hospital of Zhejiang University, 351#, Mingyue Street, Jinhua, Zhejiang 321000, P.R. China. Electronic address: zh_zhang1984@hotmail.com.
authors.forename: Zhongheng
authors.initials: Z
authors.lastname: Zhang
mesh_terms: D003422:Critical Care / Q000379:methods*; D006801:Humans; D064887:Observational Studies as Topic / Q000379:methods*; D057216:Propensity Score; D016032:Randomized Controlled Trials as Topic / Q000379:methods*