Tangterdchanakit, Punyacha. “Recent Five-Year Epidemiology of Preterm Singleton Delivery at Urban Community Hospital (Pakkred Hospital) in Nonthaburi”. Journal of Medical and Public Health Region 4 11, no. 2 (August 30, 2021): 79–92. Accessed April 24, 2024. https://he01.tci-thaijo.org/index.php/JMPH4/article/view/248995.