title: Effects of smoking and pollution on the respiratory system with young smokers.
mesh_terms: D000367:Age Factors; D000393:Air Pollutants / Q000009:adverse effects*; D006801:Humans; D012129:Respiratory Function Tests; D012140:Respiratory Tract Diseases / Q000453:epidemiology / Q000209:etiology*; D012383:Romania; D012907:Smoking / Q000150:complications*
chemical_list: D000393:Air Pollutants