title: Relationships between morphological changes and content of silica and hydroxyproline in bronchi and lungs of coal miners.
mesh_terms: D000328:Adult; D000368:Aged; D003032:Coal Mining; D006595:Hexosamines / Q000032:analysis; D006801:Humans; D006909:Hydroxyproline / Q000032:analysis; D008297:Male; D011009:Pneumoconiosis / Q000145:classification / Q000473:pathology*; D012822:Silicon Dioxide / Q000032:analysis*; D013223:Statistics as Topic
chemical_list: D006595:Hexosamines; D012822:Silicon Dioxide; D006909:Hydroxyproline