Reference charts for the six-minute walk test in healthy school-aged children from the city of Zaragoza, Spain Ana Villamañán Montero; Carlos Martín de Vicente; Juan Pablo García Íñiguez; Feliciano Ramos Fuentes;

Fundoscopy or point-of-care ocular ultrasound? Ana Sancho Mensat; Patricia Morte Coscolín; Bárbara Fernández Romero; Daniel Palanca Arias;

Diagnosis of infective endocarditis using focused cardiac ultrasound Verónica Jiménez Escobar; Cristina Walter Carin; Irene Antoñanzas Torres; Daniel Palanca Arias;