Volume 49, Issue 6, Pages 1093-1098 (June 2006)
Alessandro Antonelli, Claudio Simeone, Danilo Zani, Tazio Sacconi, Gianfranco Minini, Emma Canossi, Sergio Cosciani Cunico
Accepted 22 March 2006 published online 6 April 2006.
Editorial Comment by M. Cek
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