Read the following article and answer the below question:
https://www.gcumedia.com/digital-resources/jones-and-bartlett/2017/delivering-health-care-in-america_a-systems-approach-custom_7e.php
USER: xxx
PASS: xxx
What health care providers are the major players in the U.S. health care system? What are the positive and negative effects of the often-conflicting self-interests and lack of regulation on these players?