Warshaw EM, Schram SE, Belsito DV, DeLeo VA, Fowler JF, Maibach HI, Marks JG, Mathias CG, Pratt MD, Rietschel RL, Sasseville D, Storrs FJ, Taylor JS, Zug KA PMID: 18413108
Farage MA, Miller KW, Berardesca E, Maibach HI PMID: 18988090