Is primary drug-resistance to major antituberculous agents increasing?
D000328:Adult; D000636:Aminosalicylic Acids / Q000494:pharmacology; D000995:Antitubercular Agents / Q000494:pharmacology*; D002170:Canada; D004352:Drug Resistance, Microbial; D004641:Emigration and Immigration; D006801:Humans; D007538:Isoniazid / Q000494:pharmacology; D008875:Middle Aged; D009169:Mycobacterium tuberculosis / Q000187:drug effects*; D012959:Socioeconomic Factors; D013307:Streptomycin / Q000494:pharmacology
D000636:Aminosalicylic Acids; D000995:Antitubercular Agents; D007538:Isoniazid; D013307:Streptomycin