GlaxoSmithKline, one of the world's leading research-based pharmaceutical companies, is committed to improving the quality of human life by enabling people to do more, feel better and live longer. Headquartered in the U.K. with operations based in the U.S., GlaxoSmithKline is one of the industry leaders, with an estimated 7 percent of the world's pharmaceutical market. It also has leadership in four major therapeutic areas – anti-infectives, central nervous system, respiratory and gastrointestinal/metabolic.