Uguralp, S., B. Harma, and A. Karaman. “Intrathoracic Sewing Needle: An Unusual Penetrating Injury in Two Children”. Annals of Medical Research, vol. 16, no. 2, May 2021, pp. 0121-3, http://annalsmedres.org/index.php/aomr/article/view/3411.