GlaxoSmithKline plc (GSK) is a global healthcare group, which is engaged in the creation and discovery, development, manufacture and marketing of pharmaceutical products, including vaccines, over-the-counter (OTC) medicines and health-related consumer products. Its pharmaceutical products include medicines in the therapeutic areas, such as respiratory, central nervous system, anti-virals, anti-bacterials, metabolic, vaccines, cardiovascular and urogenital, oncology and emesis. It has operations in some 114 countries and products sold in over 150 countries. The Company operates in two segments: Pharmaceuticals (prescription pharmaceuticals and vaccines) and Consumer Healthcare. In July 2009, it acquired BMS' branded generics business, which comprises a portfolio of 13 branded pharmaceuticals. In July 2009, it acquired Stiefel Laboratories, Inc. In February 2010, the Company formed a new standalone unit specialising in the development and commercialisation of medicines for rare diseases.