Dear AuntMinnie member, Over the last 15 years, interventional radiology has grown increasingly concentrated among a smaller share of the radiologist workforce, according to a study from the Harvey L. Neiman Health Policy Institute. And the percentage of those with a supermajority (more than 90%) of IR-related work has doubled. What else did the researchers find? You can access our coverage here. The knockout stage of the FIFA World Cup begins on Sunday.