Credit: CC0 Public Domain A team of medical researchers affiliated with several institutions in the U.S. has found that a high percentage of doctors posting endorsements regarding drugs on the social media site X were paid to do so by the makers of the drugs. In their study, published in JAMA , the group searched for drug endorsements by doctors on X and then used a website called Open Payments to find out if they had been paid for their endorsements. The United States is one of the few develope...