title: Changing patterns of contact sensitivity in Sofia.
abstract: 1237 patients with contact sensitization were patch tested five times with the standard patch test series at 3-year intervals. The study was carried out during the period 1975-1987. The results point out the increasing significance of the most common allergens in the industrially developed countries: potassium dichromate, isopropylaminodiphenylamine, formalin, p-phenylenediamine and nickel sulfate.
authors.affiliation: Research Institute of Dermatology and Venerology Medical Academy, Sofia, Bulgaria.
authors.forename: L
authors.initials: L
authors.lastname: Stransky
authors.forename: M
authors.initials: M
authors.lastname: Krasteva
mesh_terms: D000328:Adult; D000485:Allergens; D002031:Bulgaria; D003877:Dermatitis, Contact / Q000209:etiology*; D005260:Female; D005557:Formaldehyde / Q000009:adverse effects; D006801:Humans; D008297:Male; D009532:Nickel / Q000009:adverse effects; D010328:Patch Tests; D010655:Phenylenediamines / Q000009:adverse effects; D011192:Potassium Dichromate / Q000009:adverse effects
chemical_list: D000485:Allergens; D010655:Phenylenediamines; D005557:Formaldehyde; C029938:nickel sulfate; D009532:Nickel; C014627:N-isopropyl-N-phenyl-4-phenylenediamine; D011192:Potassium Dichromate; C029728:4-phenylenediamine