Chan, Lorraine, and Kwok-yin Leung. “COVID-19 Infection and Adverse Pregnancy Outcomes: A Retrospective Study”. Hong Kong Journal of Gynaecology, Obstetrics and Midwifery 24, no. 1 (March 13, 2024). Accessed May 13, 2024. https://hkjgom.org/home/article/view/359.