PubMed:: "Hydrofluoric Acid"[Mesh] OR fluoride*[tiab] OR hydrofluoric acid[tiab] OR fluohydric acid[tiab] OR hydrofluoric acids[tiab] OR fluohydric acids[tiab];; Embase.com:: 'hydrofluoric acid'/exp OR fluoride*:ti,ab OR 'hydrofluoric acid':ti,ab OR 'fluohydric acid':ti,ab OR 'hydrofluoric acids':ti,ab OR 'fluohydric acids':ti,ab