Funding for this research was provided by:
International Headache Society (1042574)
Received: 7 December 2021
Accepted: 21 January 2022
First Online: 17 February 2022
: The experimental procedures for the IHC and qPCR in Sweden were approved by the Lund University Animal Ethics Committee (M43–07). The CGRP release experiments performed in Denmark were approved by The Danish Animal Experimentation Inspectorate. All experiments were performed in accordance with the European Community Council Directive on ‘The Protection of Animals Used for Scientific Purposes’ (2010/63/EU).
: Not applicable.
: The authors declare that they have no competing interests.