2 of those authors can't even legally treat patients in the United States.
It really goes to show how corrupt the US Medical/Physician cartel is. Even outstanding scientists and experts are not allowed to treat a patient. Heck one of them teaches Physicians but can't practice.
Totally bizarre how widely accepted having 1 medical cartel is. Hopefully after the opioid epidemic, people are much more skeptical of Physicians and we can get legislation to destroy their grip.