Pfizer to Acquire Coley Pharmaceutical Group Acquisition Will Expand Pfizer's Investment in Vaccines, Broaden Scope of Research in a Number of Key Therapeutic Areas <a href="http://biz.yahoo.com/bw/071116/20071116005284.html?.v=1" target="_blank">http://biz.yahoo.com/bw/071116/20071116005284.html?.v=1</a>