McKesson Corporation (NYSE: MCK) is the largest health care company in the world, with sales of $106.6 billion in 2009.
McKesson is based in the United States and distributes health care systems, medical supplies and pharmaceutical products. Additionally, McKesson provides extensive network infrastructure for the health care industry, and was an early adopter of new technologies like bar-code scanning for distribution, pharmacy robotics, and RFID tags.
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