Wilson, A.M., Abney, S.E., King, M-F., Weir, M.H., López-García, M., Sexton, J.D., Dancer, S.J., Proctor, J., Noakes, C.J., Reynolds, K.A., "COVID-19 and use of non-traditional masks: how do various materials compare in reducing the risk of infection for mask wearers?", Journal of Hospital Infection, 2020