- Dr Stephan Felber, Department of Magnetic Resonance, University of Innsbruck, Anichstrasse 35, A - 6020 Innsbruck, Austria. Telephone 00512 504 4430; fax 00512 504 4419.
- Received February 19, 1997
- Revised August 13, 1997
- Accepted August 15, 1997
- First published April 1, 1998.
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