Chairat Neruntarat และ Burapa Kanjanabatr. (1998) Laryngopharyngeal reflux disease: 24-hour double probe ptt monitoring. <i>Journal of Medicine and Health Sciences</i>, <i>5</i>(2), 81-90.Chairat Neruntarat และ Burapa Kanjanabatr. "Laryngopharyngeal reflux disease: 24-hour double probe ptt monitoring". Journal of Medicine and Health Sciences 5 (1998):81-90.Chairat Neruntarat และ Burapa Kanjanabatr. Laryngopharyngeal reflux disease: 24-hour double probe ptt monitoring. Faculty of Medicine,Srinakharinwirot University:ม.ป.ท. 1998.