FONG, Daniel YT, Chun Fan LEE, and Siu Pik LAU. “Contingency Table Analysis in Obstetrics and Gynaecology”. Hong Kong Journal of Gynaecology, Obstetrics and Midwifery 8, no. 1 (March 31, 2023). Accessed April 4, 2025. https://hkjgom.org/home/article/view/84.