Sept. 9 (Bloomberg) -- Sanofi-Aventis SA may need to raise its bid for Genzyme Corp. to at least $75 a share, or about $19.1 billion, to gain support from board members at the U.S. biotechnology company, including those loyal to investor Carl C. Icahn, according to a person familiar with the process. Bloomberg's Shannon Pettypiece talks with Carol Massar. (Source: Bloomberg)