Fig. 1From: Systematic review and meta-analysis of propofol versus barbiturates for controlling refractory status epilepticusFlow chart of selection process for studies included in meta-analysis. At first, 103 investigations were defined to be closely correlated to the conception of this study. After a careful screening, a total of 7 studies met the inclusion criteria, which were searched from the database of Medline/PubMed, EMBASE, Cochrance Library, Web of Science and China National Knowledge Infrastructure DatabaseBack to article page