title: Effect of chronic exposure to nitrogen dioxide on collagen content in lung and skin of guinea pigs.
mesh_terms: D000818:Animals; D003094:Collagen / Q000378:metabolism*; D006909:Hydroxyproline / Q000378:metabolism; D008168:Lung / Q000187:drug effects / Q000378:metabolism* / Q000473:pathology; D008297:Male; D051379:Mice; D009585:Nitrogen Dioxide / Q000494:pharmacology*; D012867:Skin / Q000187:drug effects / Q000378:metabolism* / Q000473:pathology; D013997:Time Factors
chemical_list: D003094:Collagen; D006909:Hydroxyproline; D009585:Nitrogen Dioxide