title: Effects of smoking modified cigarettes on respiratory symptoms and ventilatory capacity.
mesh_terms: D000328:Adult; D003371:Cough / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009538:Nicotine / Q000032:analysis; D010947:Plants, Toxic; D012119:Respiration; D012621:Seasons; D012907:Smoking; D013147:Spirometry; D014026:Nicotiana / Q000032:analysis; D014797:Vital Capacity / Q000187:drug effects*
chemical_list: D009538:Nicotine