Personal protective effect of wearing surgical face masks in public spaces on self-reported respiratory symptoms in adults: pragmatic randomised superiority trial
在公共场所佩戴医用外科口罩对成人自述呼吸道症状的个人防护效果:一项实用性随机优效性试验
期刊:Bmj-British Medical Journal
影响因子:42.7
doi:10.1136/bmj-2023-078918
Solberg, Runar Barstad; Fretheim, Atle; Elgersma, Ingeborg Hess; Fagernes, Mette; Iversen, Bjørn Gunnar; Hemkens, Lars G; Rose, Christopher James; Elstrøm, Petter