title: Long-term particle clearance in man: normal and impaired.
mesh_terms: D000328:Adult; D000336:Aerosols; D000368:Aged; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D012119:Respiration; D012143:Respiratory Physiological Phenomena; D012137:Respiratory System / Q000503:physiopathology; D012907:Smoking
chemical_list: D000336:Aerosols