Face masks for the prevention of COVID-19 - Rationale and design of the randomised controlled trial DANMASK-19
Danish Medical Journal (2020) - Comment
pubmed: 32829745  issn: 2245-1919 

Henning Bundgaard, Johan Skov Bundgaard, Daniel Emil Tadeusz Raaschou-Pedersen, Anton Friis Mariager, Natasja Schytte, Christian Von Buchwald, Tobias Todsen, Kerstin Skovgaard, Romona Trebbien, Mikkel Porsborg Andersen, Thomas Benfield, Henrik Ullum, Christian Torp-Pedersen, Kasper Iversen