Vongxay, V., Chapman, R. S., & Siriwong, W. (2017). Respiratory Symptoms In Relation To Household Air Pollution Sources In Rural And Urban Areas Of Vientiane Capital, Lao PDR. Journal of Health Research, 26(Special), S43-S52. Retrieved from https://he01.tci-thaijo.org/index.php/jhealthres/article/view/85526