Hi Charles, > Dear Sirs, [...] Not interested in opinions of Madams? R-help is not a 'males-only-club'. Helmut (Sir) -- Ing. Helmut Schütz BEBAC – Consultancy Services for Bioequivalence and Bioavailability Studies Neubaugasse 36/11 1070 Vienna, Austria W https://bebac.at/ F https://forum.bebac.at/