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 Roberto de la Plaza Llamas; Paula Soto García; Wenzhong Sun; Ignacio Antonio Gemio del Rey; Daniel Alejandro Díaz Candelas; Ludovica Gorini; Farah Al Shwely Abduljabar; Raquel Aránzazu Latorre Fragua;

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