Ooi JY, Koay KL, Tang LLH, Velayutham R. Trichobezoar with duodenal perforation: a rare occurrence. Int Surg J [Internet]. 2022 Oct. 29 [cited 2025 Nov. 10];9(11):1874-6. Available from: https://www.ijsurgery.com/index.php/isj/article/view/9074