Erratum to: Intern Emerg Med (2014) 9:861–870 DOI 10.1007/s11739-014-1096-1

Regrettably, institutional author group lists were published as Electronic Supplementary Materials. The author groups ARAPACIS Study Investigators and GIS Group need to be listed in the Appendix section instead of Electronic supplementary material.

The members of the ARAPACIS Study Investigators and GIS Group are given in the Appendices 1 and 2, respectively.