title: Letter: Ear piercing hazard of nickel-gold sensitization.
mesh_terms: D003877:Dermatitis, Contact; D004431:Ear, External; D005260:Female; D006046:Gold / Q000009:adverse effects*; D006801:Humans; D008297:Male; D009532:Nickel / Q000009:adverse effects*
chemical_list: D006046:Gold; D009532:Nickel