Natural history study of congenital heart defects

摘要: A strategy designed to locate and recruit individuals who were part of a study in the 1960s congenital aortic stenosis, pulmonary ventricular septal defect for purposes follow-up examination is presented. These are now adults living throughout United States some foreign countries. The present study, referred as NHS-2, bring survivors back one six clinical centers medical evaluation long-term results surgical treatment such patients.