Leerasiri P, Rattanachaiyanont M. Pregnancy of Unknown Location: A Review with Demonstration of 3 Cases. Siriraj Med J [Internet]. 2007 Feb. 1 [cited 2024 May 2];59(2):89-92. Available from: https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/246036