Proceedings of the National Academy of Sciences (2000) - Comment
pubmed: 11070093  doi: 10.1073/pnas.97.23.12822  issn: 0027-8424  issn: 1091-6490 

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M. Grilli, E. Diodato, G. Lozza, R. Brusa, M. Casarini, D. Uberti, R. Rozmahel, D. Westaway, P. St George-Hyslop, M. Memo, E. Ongini