title: Risk factors: Nanomaterials should be defined.
authors.forename: Hermann
authors.initials: H
authors.lastname: Stamm
mesh_terms: D004348:Drug Labeling; D033161:Government Regulation; D006801:Humans; D049329:Nanostructures / Q000009:adverse effects / Q000737:chemistry / Q000145:classification*; D036103:Nanotechnology / Q000331:legislation & jurisprudence / Q000592:standards*; D010316:Particle Size; D052638:Particulate Matter / Q000737:chemistry / Q000145:classification; D018570:Risk Assessment / Q000331:legislation & jurisprudence / Q000379:methods
chemical_list: D052638:Particulate Matter