Raúl A. Borracci, Biostatistics, School of Medicine, Austral University, Buenos Aires. Argentina
José M. Alvarez-Gallesio, Medical Education Research Laboratory, Deutsches Hospital, Buenos Aires. Argentina
Graciana Ciambrone, Medical Education Research Laboratory, Deutsches Hospital, Buenos Aires. Argentina
Norberto A. Mezzadri, Department of Surgery, Deutsches Hospital, Buenos Aires, Argentina