Hydrofluoric acid--a chronic poisoning effect.
D002908:Chronic Disease; D005459:Fluorides / Q000652:urine; D006801:Humans; D006858:Hydrofluoric Acid / Q000506:poisoning*; D009784:Occupational Diseases / Q000139:chemically induced*
D005459:Fluorides; D006858:Hydrofluoric Acid