title: Characterization of a bronchial inhibitor in the sputum of chronic bronchitics.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D001991:Bronchitis / Q000378:metabolism*; D002846:Chromatography, Affinity; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D002908:Chronic Disease; D006801:Humans; D008970:Molecular Weight; D011480:Protease Inhibitors / Q000032:analysis / Q000302:isolation & purification*; D013183:Sputum / Q000378:metabolism*; D000515:alpha 1-Antitrypsin / Q000037:antagonists & inhibitors
chemical_list: D000596:Amino Acids; D011480:Protease Inhibitors; D000515:alpha 1-Antitrypsin