Compare and contrast two companies that serve the HIT (Health Information Technology) market when a health care organization needs to turn to the market for applications, infrastructure, or services (for example, McKesson, Cerner, Siemens, CSC, Perot Systems, Ingenix, GE, Emdeon, Agfa, and Misys). In your post, discuss the following: The companies' products, services, market focus, and size. How do these companies attempt to influence stakeholders when reaching out to a new client?