Khan S, Singh T, Maiti G. Acardia anceps: the monster twin; twin reversed arterial perfusion (TRAP) syndrome. Int J Reprod Contracept Obstet Gynecol [Internet]. 2018 Oct. 25 [cited 2025 Oct. 14];7(11):4775-8. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/5598