Boonreung, J.; Suwanno, J.; Petsirasan, R.; Phonphet, C.; Thiamwong, L. Association of Illness, Health Status, and Personal Characteristics With the Short-Term Episode of Severe Acute Exacerbations in Patients With Chronic Obstructive Pulmonary Disease: A 3-Month Prospective. J Health Sci Thai 2017, 25, 981-993.