Pfizer Inc. (Pfizer) is a research-based, global biopharmaceutical company. The Company manages its operations through five segments: Primary Care; Specialty Care and Oncology; Established Products and Emerging Markets; Animal Health, and Consumer Healthcare. The Company's diversified global healthcare portfolio includes human and animal biologic and small molecule medicines and vaccines, as well as nutritional products and consumer healthcare products. Its Animal Health business unit discovers, develops and sells products for the prevention and treatment of diseases in livestock and companion animals. Primary Care operating segment includes revenues from human prescription pharmaceutical products primarily prescribed by primary-care physicians. In November 2012, the Company acquired NextWave Pharmaceuticals, Inc. On November 30, 2012, the Company completed the sale of its Nutrition business.