Mathias CG, Wilson DM, Maibach HI PMID: 7276616
Weinstein GD, McCullough JL, Eaglstein WH, Golub A, Cornell RC, Stoughton RB, Clendenning W, Zackheim H, Maibach H, Kulp KR, King L, Baden HP, Taylor JS, Deneau DD PMID: 6789777
Mathias CG, Maibach HI, Chappler RR PMID: 7238009
Nacht S, Yeung D, Beasley JN, Anjo MD, Maibach HI PMID: 7204686