<?xml version="1.0" encoding="UTF-8"?>
<xml><bibliography><APA>Pongkasem Khaimook. (2005) New cases of Severe primary headache : Characteristic and health impact. &lt;i&gt;Journal of Mental Health of Thailand&lt;/i&gt;, &lt;i&gt;13&lt;/i&gt;(3), 157-162.</APA><Chicago>Pongkasem Khaimook. "New cases of Severe primary headache : Characteristic and health impact". Journal of Mental Health of Thailand  13 (2005):157-162.</Chicago><MLA>Pongkasem Khaimook. New cases of Severe primary headache : Characteristic and health impact. Department of Mental Health Thailand:ม.ป.ท. 2005.</MLA></bibliography></xml>
