1.
LUI K-Y, LEE Y-T, SO C-H, YU EL. Difference in Serum Human Chorionic Gonadotrophin Levels Measured Using the World Health Organization 3rd versus 5th International Standard: A Correlation Study with Reference to Management of Pregnancy of Unknown Location. Hong Kong J Gynaecol Obstet Midwifery [Internet]. 2017 Jan. 1 [cited 2024 Nov. 21];17(1). Available from: https://hkjgom.org/home/article/view/219