title: Protease inhibitors in maxillary antral mucosa.
mesh_terms: D006801:Humans; D008443:Maxillary Sinus / Q000201:enzymology*; D009297:Nasal Mucosa / Q000201:enzymology*; D012852:Sinusitis / Q000175:diagnosis / Q000201:enzymology*; D000515:alpha 1-Antitrypsin / Q000032:analysis*
chemical_list: D000515:alpha 1-Antitrypsin