Cite
MLA Citation
Mandy Wang et al.. “A cluster-randomised controlled trial to test the efficacy of facemasks in preventing respiratory viral infection among Hajj pilgrims.” Journal of epidemiology and global health, vol. 5, no. 2, n.d., pp. 181–189. http://access.bl.uk/ark:/81055/vdc_100025910184.0x000058