ZymoGenetics Submits Citizen Petition to FDA Requesting Removal of Bovine Thrombin from Market in the Interest of Patient Safety

Reported Deaths Linked by Clinicians to Bovine Thrombin Exposure Indicate Ongoing Safety Risks SEATTLE--(BUSINESS WIRE)--Aug 20, 2009 - ZymoGenetics, Inc. (NASDAQ:ZGEN), announced today the submission of a Citizen Petition to the U.S. Food and Drug...