Do you have a list of doctors in the US that use and are skillful with the Densitometer?
Go to the ISHRS website to look up doctors who specialize in hair diagnosis, treatment or hair restoration. Good dermatologists should also fall into this category. When you call their offices, before you make the actual appointment, ask them if they map out the degree of miniaturization on the scalp for quantifying the extent of balding or thinning. That is a better probing question than asking about an instrument I invented, since other doctors may not know it by the actual name I gave it. (FYI, the U.S. Patent I obtained for this was U.S. Patent #5,331,472 ‘Method and apparatus for measuring hair density’, issued July 1994).