FONG, D.Y., LEE, C.F. and LAU, S.P. 2023. Contingency Table Analysis in Obstetrics and Gynaecology. Hong Kong Journal of Gynaecology, Obstetrics and Midwifery. 8, 1 (Mar. 2023). DOI:https://doi.org/10.12809/hkjgom.8.1.84.