Shah VP, Flynn GL, Guy RH, Maibach HI, Schaefer H, Skelly JP, Wester RC, Yacobi A PMID: 1924164
Berardesca E, Cespa M, Farinelli N, Rabbiosi G, Maibach H PMID: 1935031
Abrams K, Hogan DJ, Maibach HI PMID: 1835167
Wester RC, Patel R, Nacht S, Leyden J, Melendres J, Maibach H PMID: 1869643
Wester RC, Melendres J, Sarason R, McMaster J, Maibach HI PMID: 1884912