Quantitative and qualitative research in surgery Xavier Serra-Aracil; Manuel López Cano; Eduardo Targarona;

Accreditation of specialized surgical units in general and digestive surgery: A step forward by the AEC for quality improvement and subspecialized Fellowship training Mónica Millan; Eduardo Targarona; Eduardo García-Granero; Xavier Serra-Aracil;

Human factors in surgical practice: a national study Mireia Verdaguer-Tremolosa; Víctor Rodrigues-Gonçalves; Pilar Martínez-López; Manuel López Cano;