Funding for this research was provided by:
University of Southampton (Global Partnership fund 2018)
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (CR3213-162809/1)
Innosuisse - Schweizerische Agentur für Innovationsförderung (17988)
Received: 24 January 2020
Accepted: 8 July 2020
First Online: 29 July 2020
Ethics approval and consent to participate
: The UK National Research Ethics Committee and Health Research Authority (IRAS 234505), the Cantonal Ethics Committee of Zurich (KEK 2017–01880) and Swissmedic (2017-MD-0035) approved the study. All children gave informed assent and the parent gave informed consent.
: The parents of the participant visible in the supplemental video signed a consent form for clinical photography, stating that the video material can be used for presentation at scientific meetings, teaching purposes and publication in a scientific journal.
: Authors report no conflicts of interest.