title: Re: "Silica exposures and silicosis among Ontario hard rock miners I, II, III" by Muir et al.
authors.forename: P L
authors.initials: PL
authors.lastname: Pelmear
authors.forename: D
authors.initials: D
authors.lastname: Leong
authors.forename: G S
authors.initials: GS
authors.lastname: Rajhans
mesh_terms: D004781:Environmental Exposure; D006801:Humans; D008906:Mining; D009864:Ontario; D012307:Risk Factors; D012822:Silicon Dioxide / Q000009:adverse effects*; D012829:Silicosis / Q000453:epidemiology*; D013997:Time Factors
chemical_list: D012822:Silicon Dioxide