Antibiotics for cough and purulent sputum.
D002986:Clinical Trials as Topic; D003371:Cough / Q000188:drug therapy*; D004318:Doxycycline / Q000627:therapeutic use*; D006801:Humans; D012140:Respiratory Tract Diseases / Q000188:drug therapy; D013183:Sputum
D004318:Doxycycline