Donttreadonme
Member
- Joined
- Jun 29, 2021
- Messages
- 305
Big surprise, they do nothing...
A cluster randomised trial of cloth masks compared with medical masks in healthcare workers
The aim of this study was to compare the efficacy of cloth masks to medical masks in hospital healthcare workers (HCWs). The null hypothesis is that there is no difference between medical masks and cloth masks.14 secondary-level/tertiary-level hospitals ...
www.ncbi.nlm.nih.gov