 They were critically revised by Joachim Schöpfel and Christiane Stock (INIST-CNRS, Nancy, France), Dominic Farace (GreyNet, Amsterdam, The Netherlands), Catherine Candea and Toby Green (OECD, Paris, France) and Keith G. Jeffery (CCLRC, Chilton Didcot, UK).The work was accompanied by Marcus A.Banks (Memorial Sloan-Kettering Cancer Center, New York, USA), Stefania Biagioni (ISTI-CNR, Pisa, Italy), June Crowe (Information International Associates Inc., IIA, Oak Ridge, USA) and Markus Weber (Swiss Federal Office of Public Health, Berne, Switzerland).