section_path: Quality, efficiency, and access
section_name: Quality, efficiency, and access
paragraph_text: Quality, efficiency, and access
  
  Evidence-based medicine, prevention of medical error (and other " iatrogenesis "), and avoidance of unnecessary health care are a priority in modern medical systems. These topics generate significant political and public policy attention, particularly in the United States where healthcare is regarded as excessively costly but population health metrics lag similar nations.
  
  Globally, many developing countries lack access to care and access to medicines. As of 2015, most wealthy developed countries provide health care to all citizens, with a few exceptions such as the United States where lack of health insurance coverage may limit access.