Proceedings of the National Academy of Sciences of the United States of America (2001) - Comments
pubmed: 11572935  doi: 10.1073/pnas.211026798  issn: 0027-8424  issn: 1091-6490 

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P. Cacciotti, R. Libener, P. Betta, F. Martini, C. Porta, A. Procopio, L. Strizzi, L. Penengo, M. Tognon, L. Mutti, G. Gaudino