Nunchai, J., Kaewya, P., Ituporn, N., & Manowan, T. (2023). Prevalence and Factors Related to COVID-19 Infection Among Pregnant Women at Mae Ai Hospital Chiang Mai Province. Nursing Journal CMU, 50(4), 185–197. retrieved from https://he02.tci-thaijo.org/index.php/cmunursing/article/view/265358