Wongpradid, P., Jaturakhachendecha, D. and Chamnanvanakij, S. 2021. Prevalence and Associated Factors of Underweight Status among Children Aged 2-4 Years at Child-Care Centers of Wiang Subdistrict, Chiang Khong District, Chiang Rai Province. Greater Mekong Subregion Medical Journal. 1, 1 (Jan. 2021), 11–17.