Perhaps the investigation may be of interest to you.
The real question is if the rest of the medical profession in the area will take note or simply brush the results off.
Odds are good for the latter.
Have had a breathing issue myself for the past seven or eight years, irritation of the airway, docs keep looking at the lungs but not the airway.
After all, what does the patient know about where the discomfort is?
So the odds are pretty good that any results he gets will be dismissed out of gand by my local docs.