Tangwiwat, P.; Tuangrattananon, T.; Limchumroon, W.; Ingthom, B.; Topothai, C.; Topothai, T. Severity and Associated Factors of COVID-19 Infection among Pregnant and Postpartum Women: A Cross-Sectional Study in Thailand. J Health Syst Res 2024, 18, 251-63.