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<PAGE> 1 EXHIBIT 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated March 1, 2000. PricewaterhouseCoopers Ltd. /s/ U. Honegger /s/ St. Haag -------------------------------------- ----------------------------- U. Honegger St. Haag Winterthur, Switzerland, January 9, 2001
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