Jordan RC, Diss TC, Millson C, Wilson M, Speight PM PMID: 9416576
Enslein K, Gombar VK, Blake BW, Maibach HI, Hostynek JJ, Sigman CC, Bagheri D PMID: 9463544
Frieden IJ, Eichenfield LF, Esterly NB, Geronemus R, Mallory SB PMID: 9344205
Zettersten EM, Ghadially R, Feingold KR, Crumrine D, Elias PM PMID: 9308554