title: A quantitative study of the penetration of insoluble particles into the tissue of the conducting airways.
mesh_terms: D000336:Aerosols; D000818:Animals; D008297:Male; D011868:Radioisotopes / Q000008:administration & dosage*; D051381:Rats; D011919:Rats, Inbred Strains; D012119:Respiration; D012137:Respiratory System / Q000378:metabolism*; D014132:Trachea
chemical_list: D000336:Aerosols; D011868:Radioisotopes