Makrexeni, Z.M., and L. Bobotyana. “The Initial Experience and Outcomes of Patent Ductus Arteriosus Closure at Nelson Mandela Academic Hospital, Mthatha, Eastern Cape: Patent Ductus Arterioles Closure Using Ampletzer”. SA Heart Journal 22, no. 1 (March 7, 2025): 56. Accessed October 8, 2025. https://www.journals.ac.za/SAHJ/article/view/5174.