title: Influence of household contacts on the effectiveness of face masks for preventing influenza in a healthcare setting: a comment on Cowling et al. (2010).
authors.forename: C J
authors.initials: CJ
authors.lastname: Williams
authors.forename: U
authors.initials: U
authors.lastname: Buchholz
mesh_terms: D005190:Family; D006268:Health Facilities; D006302:Health Services Research; D006801:Humans; D017053:Infection Control / Q000379:methods*; D007251:Influenza, Human / Q000517:prevention & control*; D008397:Masks