title: Letter to editor re: Ling et al. 2011 (Environ Sci Pollut Res Int 18(6): 877-889).
authors.forename: Marisa
authors.initials: M
authors.lastname: Kreider
authors.forename: Julie
authors.initials: J
authors.lastname: Panko
mesh_terms: D006801:Humans; D019570:Inhalation Exposure / Q000009:adverse effects*; D053758:Nanoparticles / Q000633:toxicity*; D016273:Occupational Exposure / Q000032:analysis*; D053260:Soot / Q000633:toxicity*; D014025:Titanium / Q000633:toxicity*
chemical_list: D053260:Soot; D014025:Titanium