Hi there, Anybody knows how to get the spreadsheet macro for setting up PCR assays: ÒPCRmacInt.XlmÓ (BioTechniques, 1996 vol 20, No. 6, pages 1088-1089) or the eMail address of the authors: Raymond P Stowe and Duane L. Pierson ? Thanks, G. Dorado bb1dopeg at uco.es