Diagnosis of congenital chagas disease using an iron superoxide dismutase excreted as antigen, in mothers and their children during the first year of life

1. Valdez, F.C.
2. Marín, C.
3. Abuxapqui, J.F.
4. Ortegón, J.E.
5. Cañas, R.
6. Moreno, M.S.