Modjtahedi BS, Modjtahedi SP, Maibach HI PMID: 16980245
Faergemann J, Wahlstrand B, Hedner T, Johnsson J, Neubert RH, Nyström L, Maibach H PMID: 16215760
Farage M, Maibach H PMID: 16208476
McDaniel DH, Neudecker BA, DiNardo JC, Lewis JA, Maibach HI PMID: 17129261