title: [Sputum concentrations of tetracycline-HCl, doxycycline and tetracycline-HCl bromelain after oral administration].
mesh_terms: D000284:Administration, Oral; D000368:Aged; D001991:Bronchitis / Q000188:drug therapy; D004318:Doxycycline / Q000008:administration & dosage / Q000378:metabolism* / Q000627:therapeutic use; D006801:Humans; D008297:Male; D008875:Middle Aged; D013183:Sputum / Q000032:analysis*; D013754:Tetracyclines / Q000008:administration & dosage / Q000378:metabolism* / Q000627:therapeutic use
chemical_list: D013754:Tetracyclines; D004318:Doxycycline
vernacular_title: Sputum-konzentrationen von Tetracyclin-HCl, Doxycyclin und Tetracyclin-HCl-Bromelin nach peroraler Einnahme.