Bayer Corporation, headquartered in Pittsburgh, is part of the worldwide Bayer Group, an international health care, nutrition and innovative materials group based in Leverkusen, Germany. Bayer employs 23,300 in North America with net North American sales of 8.8 billion euros in 2003. Bayer's three operating business areas -- HealthCare, CropScience and MaterialScience, produce a broad range of products that help diagnose and treat diseases, protect crops, advance automobile safety and durability and improve people's lives.