Heart failure and AF related. Why the WSJ really need better journalists with subject matter expertise and analytical skills. (IMO they have went down the tubes in recent years) https://www.wsj.com/articles/heart-device-procedure-is-no-better-than-drug-therapy-for-irregular-heartbeat-study-1525989601 here is the more detailed analysis https://drjohnday.com/cabana-study/ .