OBJECTIVE To investigate clinical effect and application value of procalcitonin(PCT),white blood cell(WBC)and C reactive protein(CRP)in differential diagnosis of neonatal infection,to provide reference for early diagnosis and early treatment of neonatal infection.METHODS From Feb.2014 to Jul.2015,113 cases of children with neonatal infections in our hospital were selected as the research subjects.According to different types of infections,those children were divided into the bacterial infection group(62case...