Problems of drug resistance.
D010131:Aminosalicylic Acid / Q000494:pharmacology*; D004351:Drug Resistance; D006801:Humans; D009169:Mycobacterium tuberculosis / Q000187:drug effects*; D009525:Niacin; D009539:Nicotinic Acids / Q000494:pharmacology*; D013307:Streptomycin / Q000494:pharmacology*
D009539:Nicotinic Acids; D009525:Niacin; D010131:Aminosalicylic Acid; D013307:Streptomycin
MYCOBACTERIUM TUBERCULOSIS/effect of drugs on; NICOTINIC ACID ISOMERS/effects; PARA-AMINOSALICYLIC ACID/effects; STREPTOMYCIN/effects