Djer M, Madiyono B. Blood nickel level and its toxic effect after transcatheter closure of persistent duct arteriosus using Amplatzer duct occluder. PI [Internet]. 1Mar.2009 [cited 22Nov.2024];49(1):33-. Available from: https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/453