[sorabji]

According to the always authoritative[citation needed] Wikipedia:

The Walgreen Company (NYSE: WAG), d/b/a Walgreens (without an apostrophe), is the second largest drugstore chain in the United States.^[2] The company operates about 7,000 drugstores in all 50 states, the District of Columbia and Puerto Rico. Walgreens provides access to consumer goods and services and pharmacy, health and wellness services in America through its retail drugstores, Walgreens Health Services division and Walgreens Health and Wellness division. Walgreens Health Services offers pharmacy patients and prescription drug and medical plans through Walgreens Health Initiatives Inc. (a pharmacy benefit manager), Walgreens Mail Service Inc., Walgreens Home Care Inc., Walgreens Specialty Pharmacy LLC and SeniorMed LLC (a pharmacy provider to long-term care facilities). Walgreens Health and Wellness division includes Take Care Health Systems, a manager of worksite health and wellness centers and in-store convenient care clinics, with more than 700 locations throughout the country^{[citation needed][3]} Walgreens has 6,996 drugstores as of August 31, 2009. Walgreens was founded in Chicago, Illinois, in 1901 and has since expanded throughout the United States. Its headquarters is located in the nearby suburb of Deerfield, Illinois.