Leslie KS, Lachmann HJ, Bruning E, McGrath JA, Bybee A, Gallimore JR, Roberts PF, Woo P, Grattan CE, Hawkins PN PMID: 17178985
Xing MM, Sun Z, Pan N, Zhong W, Maibach HI PMID: 17154689
Marqueling AL, Gilliam AE, Prendiville J, Zvulunov A, Antaya RJ, Sugarman J, Pang ML, Lee P, Eichenfield L, Metz B, Goldberg GN, Phillips RJ, Frieden IJ PMID: 17178988
Siegel DH, Holland K, Phillips RJ, Drolet BA, Esterly NB, Frieden IJ PMID: 17155993