A cluster-randomised controlled trial to test the efficacy of facemasks in preventing respiratory viral infection among Hajj pilgrims

por Wang, Mandy, Barasheed, Osamah, Rashid, Harunor, Booy, Robert, El Bashir, Haitham, Haworth, Elizabeth, Ridda, Iman, Holmes, Edward C., Dwyer, Dominic E., Nguyen-Van-Tam, Jonathan, Memish, Ziad A., Heron, Leon
Publicado 2015