| tension h. |
a type brought on by prolonged overwork or emotional strain, or both, affecting especially the occipital region; it is usually continuous for weeks or months. Some individuals are particularly susceptible, possibly because of a defect in neurologic pathways controlling pain. A distinction is made between episodic types, which abate within a few weeks to six months, and chronic types, which persist uninterrupted for six months or longer.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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