Normal Not Good/Bad: Normal only means common, usual, average, not good or bad. The sound of one's laugh is a function of complex muscle coordination, vocal cords, pharynx shape during laugh, etc. The tests mentioned have little, if any, relationship to the nature of one's laugh. They are just tests commonly performed for other issues and for which 3rd party payers will often pay.
Answered 3/18/2019
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