When was the most recent large-scale health care reform in an industrialized country and how has it affected quality of care or the health care industry?

Hi OP and potential respondents. A reminder of this sub's 20-year rule against discussing current affairs, so all answers must cut off at 1997.

OP if you're looking for more recent information, consider x-posting to /r/AskScience, /r/AskSocialScience, or a medical sub.