Nakada T, Maibach HI PMID: 9686969
Wester RC, Melendres J, Hui X, Cox R, Serranzana S, Zhai H, Quan D, Maibach HI PMID: 9638901
Marks JG, Belsito DV, DeLeo VA, Fowler JF, Fransway AF, Maibach HI, Mathias CG, Nethercott JR, Rietschel RL, Sherertz EF, Storrs FJ, Taylor JS PMID: 9631997
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