Is ultrasonography accurate for the diagnosis of gallbladder polyps? A review of cholecystectomy specimens from patients diagnosed with gallbladder polyps over a 14-years period Anna González Costa; Victoria Lucas Guerrero; María Nieves García Monforte; Natalia Bejarano González; Andreu Romaguera Monzonís; Beatriz Consola Maroto; Francisco G. Borobia;

Cervical ultrasound for the evaluation of the vocal cords: A pilot study in an endocrine surgery unit Luis Eduardo Pérez-Sánchez; Eugenia Caballero-Rodríguez; Rafael Orti-Rodríguez; Ana Soto-Sánchez; Miguel Ángel García-Bello; Julio César Jordán-Balanza; Manuel Ángel Barrera-Gómez;

National survey on the treatment of acute appendicitis in Spain during the initial period of the COVID-19 pandemic Mikel Prieto; Benedetto Ielpo; Montiel Jiménez Fuertes; María del Carmen González Sánchez; Esteban Martín Antona; José M. Balibrea; José Manuel Aranda Narváez;