Clinical guidelines. What they are and how to interpret them. GRADE methodology Víctor Soria Aledo; Benito Flores Pastor; José Luis Aguayo Albasini;

Massive cervical dilatation: Risks and challenges in managing complications of retrosternal coloplasty Lucía Lavín Montoro; Elías Rodríguez Cuéllar; Inés Marcos Cortés; Eduardo Ferrero Herrero;

Assessment of postoperative morbidity in Spanish hospitals: Results from a national survey Roberto de la Plaza Llamas; David Parés; Víctor Soria Aledó; Roger Cabezali Sánchez; Miguel Ruiz Marín; Ana Senent Boza; Manuel Romero Simó; Natalia Alonso Hernández; Helena Vallverdú-Cartié; Julio Mayol Martínez;