Plenty is doing.
"....3789 post-myocardial infarction patients....were randomly assigned to use a placebo or colfibrate, a drug that lowers cholesterol. Patients were followed for 5-8ï¿½ years in order to detect differences in mortality.... ....early analysis within the colfibrate-treated group showed that those who consumed the medication experienced lower mortality rates than did those who failed to comply. When the same analysis was done within the placebo treated group, the placebo-treated compliers also experienced lower mortality rates than did the non-compliers."
Disclaimer: this quote appears here only to spark discussion. It is not endorsed one way or the other. Make up your own mind. Or just refresh the page for another viewpoint. From a collection assembled by the late Chris Brand.