William "Bill" Sibold has been appointed Head of Multiple Sclerosis at Genzyme. Bill has more than 20 years of experience in the biopharmaceutical industry, primarily in commercial operations. (Photo: Business Wire)
Rogerio Vivaldi has been appointed Head of Rare Diseases at Genzyme. Rogerio joined Genzyme in 1997 and has held positions of increasing responsibility over his career with the company. (Photo: Business Wire)