Zug KA, Warshaw EM, Fowler JF, Maibach HI, Belsito DL, Pratt MD, Sasseville D, Storrs FJ, Taylor JS, Mathias CG, Deleo VA, Rietschel RL, Marks J (2009). «Patch-test results of the North American Contact Dermatitis Group 2005-2006». Dermatitis20 (3): 149-60. PMID19470301. doi:10.2310/6620.2009.08097.
Zug KA, Warshaw EM, Fowler JF, Maibach HI, Belsito DL, Pratt MD, Sasseville D, Storrs FJ, Taylor JS, Mathias CG, Deleo VA, Rietschel RL, Marks J (2009). «Patch-test results of the North American Contact Dermatitis Group 2005-2006». Dermatitis20 (3): 149-60. PMID19470301. doi:10.2310/6620.2009.08097.