title: [Effect of ethambutol and rifampicin on sputum conversion in chronically infectious patients].
mesh_terms: D000328:Adult; D000368:Aged; D002908:Chronic Disease; D004359:Drug Therapy, Combination; D004977:Ethambutol / Q000494:pharmacology* / Q000627:therapeutic use; D006801:Humans; D008875:Middle Aged; D012293:Rifampin / Q000494:pharmacology* / Q000627:therapeutic use; D013183:Sputum / Q000187:drug effects*; D014397:Tuberculosis, Pulmonary / Q000188:drug therapy*
chemical_list: D004977:Ethambutol; D012293:Rifampin
vernacular_title: Wpływ etambutolu i rifampicyny na zahamowanie pratkowania u chorych przewlekle pratkujacych