1. A cluster randomised trial of cloth masks compared with medical masks in healthcare workers;MacIntyre;BJM Open,2015
2. Face mask use and control of respiratory virus transmission in households;MacIntyre;Emerging Infect. Dis.,2009
3. Standard Specification for Performance of Materials Used in Medical Face Masks,2019
4. Standard Test Method for Resistance of Medical Face Masks to Penetration by Synthetic Blood (Horizontal Projection of Fixed Volume at a Known Velocity),2017