Schroeder SA, Showstack JA, Schwartz J
Callaham M
Pantell RH, Irwin CE
Pantell RH, Stewart TJ
Webb PK, Gibbs SC, Mathias CT, Crain W, Maibach H
Chappler RR, Maibach HI, Conant MA
Hulley SB, Cohen R, Widdowson G
Orkin M, Epstein E, Maibach HI