Affiliation:
  1. Medical School, Universidad Nacional Mayor de San Marcos, Lima, Peru.
  2. Department of Cardiovascular Surgery, Instituto Nacional Cardiovascular “Carlos Alberto Peschiera Carrillo,” Lima, Peru.
  3. Department of Cardiopediatrics, Instituto Nacional Cardiovascular “Carlos Alberto Peschiera Carrillo,” Lima, Peru.
  4. Department of Clinical Cardiology, Instituto Nacional Cardiovascular “Carlos Alberto Peschiera Carrillo,” Lima, Peru.