The U.S. Healthcare system has undergone many changes in its history

-What do you believe is the greatest achievement that the health care industry has made from both the patient and provider perspectives? why?

-Do you believe that there is too much or too little redundancy in our healthcare delivery system? Where does most of the redundancy occur? Where should we have more redundancy (second opinions)? I need a source to back up the answer don't let the source be over 20% similarity to the source