Split scar sign to predict complete response in rectal cancer after neoadjuvant chemoradiotherapy: systematic review and meta-analysis. - Torri, Giovanni Brondani; Wiethan, Camila Piovesan; Langer, Felipe Welter; de Oliveira, Guilherme Strieder; Meirelles, Alice Villa Bella; Horvat, Natally; Tse, Justin Ruey; Dias, Adriano Basso; Altmayer, Stephan (European Radiology, 2024)