title: By the way, doctor. I've worn a wedding ring for 30 years. Recently, the skin underneath it has begun turning black. After all these years, am I suddenly allergic to my ring?
authors.forename: Kenneth
authors.initials: K
authors.lastname: Arndt
authors.forename: Robin
authors.initials: R
authors.lastname: Travers
mesh_terms: D003343:Corrosion; D006801:Humans; D008670:Metals / Q000009:adverse effects*; D012867:Skin / Q000473:pathology*
chemical_list: D008670:Metals