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http://dx.doi.org/10.1016/s0925-4927(01)00083-x
The following have contributed to this page: Thomas E. Schlaepfer and Professor Peter Achermann

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http://dx.doi.org/10.1016/s0925-4927(01)00083-x
The following have contributed to this page: Thomas E. Schlaepfer and Professor Peter Achermann