Objective To investigate the epidemiological and treated status of congenital heart disease in school children aged 6~13in Dongguan city. Method Congenital heart disease screening was carried out by cardiac auscultation and ultrasound company with questionnaire survey in all school children in Dongguan city between November 2011 and November 2012,and treated status were analyzed in children with congenital heart disease. Results A total of 540 574 children were screened,214 634(39.7%)were residence and 325 ...