Irawan I, Surjono A, Iman S, Ismangoen I. The Incidence of Congenital Malformation in the Gadjah Mada University Hospital Yogyakarta During 1974-1979. PI [Internet]. 2021Dec.20 [cited 2025Apr.20];23(1-2):25-31. Available from: https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/2891