Are you sure you choosed the right newsgroup? * * * * * * * * * * * * * Francois Coulier INSERM Unite 119 27 bd Lei Roure 13009 Marseille France tel 33 (0) 4 91 75 84 11 fax 33 (0) 4 91 26 03 64) email: coulier at infobiogen.fr * * * * * * * * * * * * *