“…Some of the European studies showed similar high frequencies of sensitization to the following allergens compared with our study: balsam of Peru, 3,[7][8][9]11 fragrance mix, 4,7,9,11 benzalkonium chloride, 9,11 nickel, 4,6,8 and hydrogel with propylene glycol. 8 Allergen sensitivities to neomycin [2][3][4][5][6][8][9][10][11] and lanolin 3-11 were higher in the European studies. However, sensitivities to the following allergens were lower in the European studies compared with our study: bacitracin, 3 wood tar mix, [2][3][4][5]8,10 propylene glycol, 3,5,7-10 carba mix, 4-6 formaldehyde, [2][3][4][6][7][8][9][10] quaternium-15, 4-6,9,10 Euxyl K400.…”