Kittipibul, V. (2024). Outcome of First-Trimester Threatened Abortion with Slow Embryonic/Fetal Heart Rate Fewer Than 120 Beats/minute at Maharat Nakhon Ratchasima Hospital. Maharat Nakhon Ratchasima Hospital Journal, 32(2), S71-S77. retrieved from https://he04.tci-thaijo.org/index.php/MNRHJ/article/view/1921