| http://www.w3.org/ns/prov#value | - She said other researchers had shown that these ultrafine particles can carry toxic chemicals such as quinones and polycyclic aromatic hydrocarbons (PAHs).Several kinds of compounds are activated under hypoxic conditions: aromatic and aliphatic N-oxides, quinones, nitroaromatics and organo-metallic compounds.However, during infection and damage phenols and oxidases, such as peroxidase and tyrosina
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