I have no definite answer, but rather a great clue. depending on your needs contact a society or out-reach pgm. that provides specific services or help as your request. If need not be only your disability but rather any organization and having www access will provide a listing or further quey when the need arise. Just keep on clicking away, either yourself or a friend doing this for the time being.
Im got a genetic disabilty in my hands and arms that makes it very difficult to use a mouse or keyboard for lomger than a few minutes.

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