Arora, Rajin, Wanlika Kaeosuriya, and Aintila Jongpoo. 2012. “Neonatal Survival Co-efficient of Very Low Birthweight Infant”. Thai Journal of Obstetrics and Gynaecology 19 (3). Bangkok, Thailand:90-96. https://he02.tci-thaijo.org/index.php/tjog/article/view/1238.