Through this study ""Molecular Genetic Analysis of Congenital Diaphragmatic Hernia" the investigators hope to learn more about whether certain genes contribute to CDH. Genes are the instructions or blueprints for our bodies. They tell our bodies how to grow and develop. Sometimes when a mistake occurs in one or more of our genes our body does not develop properly and this can lead to a CDH. The investigators hope that the information gained through studying the genes of children with CDH and their parents, will lead to significant advances in the diagnosis, prognosis, prevention, and treatment of this disease.