Correction: Accuracy of transvaginal sonography versus magnetic resonance imaging in the diagnosis of rectosigmoid endometriosis: Systematic review and meta-analysis

• Ana Paula Carvalhal Moura, 
• Helizabet Salomão Abdalla Ayroza Ribeiro, 
• Wanderley Marques Bernardo, 
• Ricardo Simões, 
• Ulysses S. Torres, 
• Giuseppe D’Ippolito, 
• Marc Bazot, 
• Paulo Augusto Ayrosa Galvão Ribeiro