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ZYMOGENETICS INC filed this Form 8-K on January 6, 2010.

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Entire Document (8-K) PAGE 1. UNITED STATES PAGE 2. Item 1.01 PAGE 3. SIGNATURES PAGE 4. EXHIBIT INDEX

Entire Document (EX-99.1) PAGE 1. Exhibit 99.1 PAGE 2. developments affecting ZymoGenetics’ business and prospects, including the progress on the commercia