Not yet investigated
What we have so far
Real in a small number of connective tissue patients, diagnosed on measurements that vary with head position, and operated on abroad far more often than at home.
This star is on the map because the show intends to take the question apart properly — the trials, how it is actually tested, whether the thing sold is the thing studied. That work is not done yet, and nothing here should be read as a conclusion. When the investigation is published it will appear on this page.