Strauss, Ricardo
Lorenz, Eva
Kristensen, Kaja
Eibach, Daniel
Torres, Jaime
May, Jürgen
Castro, Julio
Article History
Received: 8 October 2019
Accepted: 4 June 2020
First Online: 16 June 2020
Ethics approval and consent to participate
: Ethical approval and consent to participate were not necessary as the study was based on openly available aggregated data.
: Not applicable.
: None.