Comparison and combination of three data sources from patient medical records to determine optimal quantification of postoperative morbidity according to the Clavien Dindo Classification and the Comprehensive Complication Index. A prospective study - de la Plaza Llamas, R.; Soto García, P.; Sun, W.; Gemio del Rey, I.A.; Díaz Candelas, D.A.; Gorini, L.; Shwely Abduljabar, F.A.; Latorre Fragua, R.A. (Cirugia Espanola, 2024)