Funding for this research was provided by:
Asthma UK (AUK-AC-2012-01)
Commando Joe's (na)
Received: 17 November 2019
Accepted: 20 April 2020
First Online: 1 May 2020
Consent for publication
: Consent to include anonymized information in publications was provided by all participants.
: The authors declare that they have no financial or non-financial competing interests. Commando Joe’s® were involved in the design and implementation of the study but were not involved in the analysis or interpretation of the data.