Usefulness of extended inflammatory parameters related to neutrophil activation reported by Sysmex XN-1000 hematology analyzer for predicting complicated acute appendicitis. Comparison with canonical inflammatory laboratory tests María Isabel Díaz López; Elena Crespo Álvarez; Álvaro Martínez Manzano; Eloísa Urrechaga; Manuel Tomás Orgaz Morales; Mercedes González Morales; Elena Martín García; Luis García de Guadiana-Romualdo;