| http://www.w3.org/ns/prov#value | - In particular, the present invention relates to methods and devices for delivering carbon dioxide and other gases to patients for relieving symptoms associated with headache (e.g., migraine headaches, tension-type headaches, cluster headaches), jaw pain, facial pain (e.g., trigeminal neuralgia), allergies (rhinitis and conjunctivitis), asthma, nervous disorders (e.g., epilepsy, Parkinson's), and o
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