Thank you very much to all who answered. If someone is interested I'll send a summary directly to her/him. Angélique *** *** *** Angélique Mattioli - IPG Bibliothèque, Institut de Pathologie et de Génétique asbl, allée des Templiers, 41 - 6280 LOVERVAL. BELGIUM [log in to unmask] If it bounces back/En cas de problèmes de courriel : [log in to unmask] +32(0)71.44.71.72. Fax : +32(0)71.47.15.20. *** *** ***