"The Pros and Cons of Free Healthcare and the role of HMO's"

Basically I am doing a research paper on, "The Pros and Cons of Free Healthcare and the role of HMO's"


It would be really helpful if some of you guys can take some time out and help me look for some sources online.

The type of sources I need are "online" journals, ( like ones i can find in a .pdf or anything else)

Thanks , I am really stressed out and I need roughly 15 more journals so any help I receive is well appreciated.

Thanks again, and take care.