Abstract

In (1), the following errors were present in the author affiliations and subsequently appeared Early View and in the print issue 29:4.
Footnotes
The correct and complete author list and affiliations are below.
Mea E1, Chiapparini L2, Savoiardo M2, Franzini A3, Grimaldi D4, Bussone G1, Leone M1.
1Headache Centre and Neurological Department, Neurological Institute ‘C. Besta’ Foundation, Milan, Italy
2Department of Neuroradiology, Neurological Institute ‘C. Besta’ Foundation, Milan, Italy
3Department of Neurosurgery, Neurological Institute ‘C. Besta’ Foundation, Milan, Italy
4Neurological Sciences Department, University of Bologna Medical School, Bologna, Italy
