Correction to: The Journal of Headache and Pain 22, 45 (2021)

https://doi.org/10.1186/s10194-021-01250-6

Following the publication of the original article [1], we were notified of two errors, in the legend for Fig. 3 and in the author details.

1. Fig. 3 legend: ‘Results are presented as mean percentage of respondents.’ should read ‘Results are presented as percentage of respondents.’ (the word ‘mean’ needs to be removed)

2. Author details: affiliation 4 should be ‘Eli Lilly and Company, Sesto Fiorentino (FI), Italy’ instead of ‘Eli Lilly and Company, Indianapolis, IN, USA’.

The original article has been corrected.