Israngkura Na Ayudthaya, B., Muttamara, S., Suthutvoravut, S., Thitadilok, W., Smanchat, B., Patrakom, T., Kor-anantakul, O., Suwajanakorn, S., Lumbiganon, P., Swadio, K., Snidvongs, W., O-Prasertsawat, P., Mansuwan, K., & Isranurak, S. (2022). Perinatal Mortality Rate Selected in Bangkok Hospitals and Provincial Medical Schools in Thailand : 1991. Thai Journal of Obstetrics and Gynaecology, 8(2), 93–103. retrieved from https://he02.tci-thaijo.org/index.php/tjog/article/view/257690