[1] UNIV HOSP LIMBURG, DEPT DERMATOL, 6201 BX MAASTRICHT, NETHERLANDS
[2] FOOD INSPECT SERV, COSMET SECT, 7500 AT ENSCHEDE, NETHERLANDS
[3] UNIV AMSTERDAM, ACAD MED CTR, DEPT DERMATOL, 1105 AZ AMSTERDAM, NETHERLANDS
[4] FREE UNIV AMSTERDAM HOSP, DEPT DERMATOL, 1107 MB AMSTERDAM, NETHERLANDS
[5] ACAD HOSP ROTTERDAM, DEPT DERMATOL, 3015 GD ROTTERDAM, NETHERLANDS