title: The hill tribes of Thailand, their opium use and addiction.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004787:Environmental Pollution; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D009892:Opium; D012959:Socioeconomic Factors; D019966:Substance-Related Disorders / Q000453:epidemiology* / Q000652:urine; D013785:Thailand
chemical_list: D009892:Opium