1 Clínicas Hospital, University of Buenos Aires, Laboratory of Oxygen Metabolism, Buenos Aires, Argentina. Electronic address: jpoderos@fmed.uba.ar.
2 Institute of Pharmacological Research (ININFA), CONICET-UBA, Junín 956. 5º piso, TE: 4961-5949/6784 int 108, Buenos Aires C1113AAD, Argentina. Electronic address: gacosta@ffyb.uba.ar.