Blackfoot disease: arsenic or humic acid?
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D000368:Aged; D020261:Arsenic Poisoning; D005534:Foot Diseases / Q000139:chemically induced* / Q000453:epidemiology; D005734:Gangrene / Q000139:chemically induced; D006801:Humans; D006812:Humic Substances / Q000506:poisoning*; D008297:Male; D013624:Taiwan / Q000453:epidemiology; D014873:Water Pollutants / Q000506:poisoning*; D014874:Water Pollutants, Chemical / Q000506:poisoning*; D014881:Water Supply / Q000032:analysis
D006812:Humic Substances; D014873:Water Pollutants; D014874:Water Pollutants, Chemical