Khizar A, Zahid S, Shahid F, Amjad M, Yadav PK. An anencephalic heterophagus or parasitic twin: A case report with literature review. roneuro [Internet]. 2023 Sep. 15 [cited 2026 Jul. 7];37(3):263-71. Available from: https://journals.lapub.co.uk/index.php/roneurosurgery/article/view/2436