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Pfizer is a research-based biopharmaceutical company developing and manufacturing human and veterinary medicines, as well as consumer healthcare products. The Company's health care portfolio includes human and animal biologic and small molecule medicines and vaccines, as well as nutritional products, and many consumer health care products. It operates in two business segments, such as biopharmaceutical and diversified. Biopharmaceutical segment includes the primary and specialty care, established products, emerging markets, and oncology customer-focused units. Diversified segment offers animal health products which prevent and treat diseases in livestock and companion animals and consumer healthcare products. It develops and produces medicines and vaccines for a range of conditions, including in the areas of immunology and inflammation, oncology, cardiovascular and metabolic diseases, neuroscience and pain.