a The formaldehyde used for this study is a product of Sigma-Aldrich Company, St. Louis, USA.
b The saline products used for this study are a product of VWR International, West Chester, Pa., USA.
c Cadaver skin samples were obtained from the Northern California Transplant Bank.
d The balanced salt solution used for this study is a product of In Vitro Scientific Products Corp., St. Louis, USA.
e The D-squame tape discs used for this study are a product of Cuderm Corp., Dallas, USA.
f UniverSol Liquid Scintillation Fluid is a product of MP Biomediclas, Costa Mesa, Calif., USA.
g The Tri-Carb 2900TR scintillation analyzer used for this study is a device from PerkinElmer Inc., Wellesley, Mass., USA.
h The SigmaStat computer program used for this study is a product of SPSS Science, Chicago, USA