Koehler JE, Quinn FD, Berger TG, LeBoit PE, Tappero JW PMID: 1435899
LeBoit PE, Solomon AR, Santa Cruz DJ, Wick MR PMID: 1479103
Wester RC, Maibach HI, Melendres J, Sedik L, Knaak J, Wang R PMID: 1426710