Yurdakul Y, Atasoy Ş, Sarıosmanoğlu N, Özer S, Bilgiç A. Congenital absence of the pulmonary valve associated with pulmonary stenosis, large ductus arteriosus and intact ventricular septum. Turk J Pediatr 1994; 36: 163-169. https://doi.org/10.24953/turkjpediatr.1994.3621