sale of prosthetic devices.

Receipts from selling prosthetic devices may be deducted from gross receipts or from governmental gross receipts if the sale is made to a person who is licensed to practice medicine, osteopathic medicine, dentistry, podiatry, optometry, chiropractic or professional nursing and who delivers a nontaxable transaction certificate to the seller. The buyer delivering the nontaxable transaction certificate must deliver the prosthetic device incidental to the performance of a service and must include the value of the prosthetic device in his charge for the service.