| http://www.w3.org/ns/prov#value | - Polysomnography is a test that records a variety of body functions during sleep, such as the electrical activity of the brain, eye movement, heart rate, etc. [0011] There are several methods and devices presently available for the treatment of snoring and OSA. There are oral appliances which are designed to displace the mandible (lower jaw) in an anterior (forward) direction by attaching to the up
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