What are cluster randomized controlled trials and how do investigators decide when to use them? This animated video dives into the basics of cluster RCTs. Watch the latest Stats, STAT! video from NEJM Evidence: https://youtu.be/T1uitUnZBgc | The New England Journal of Medicine

A stork bite or angel kisses refers to a cluster of blood vessels near the back of the neck or head of babies. The old myth is that a stork delivers to parents and the mark is left from the stork’s “bite” carrying the baby. It’s a sweet sentiment yet there’s another correlation to a stork bite, it’s a sign of MTHFR gene mutation. That’s not to say that if your child has a stork bite that they absolutely have MTHFR, but in my experience with detoxing children, it is one of the physical signs that