--are those for a number of the Charcot-Marie-Tooth variants and some for hereditary neuropathies with sensory/autonomic components, as well as some sensory-motor and even pure motor syndromes. Of course,it is likely one would need to be at a tertiary center to find geneticists who know of these, and even then insurance coverage is a big question.


See:

http://neuromuscular.wustl.edu/time/hsn.htm

http://neuromuscular.wustl.edu/time/hmsn.html