Rectal sparing approach after preoperative radio- and/or chemotherapy (RESARCH) in patients with rectal cancer: long term results. Issue 2 (February 2023) - Spolverato, Gaya; Rega, Daniela; Del Bianco, Paola; Guerrieri, Mario; Belluco, Claudio; Morpurgo, Emilio; Coco, Claudio; Restivo, Angelo; De Franciscis, Silvia; Aschele, Carlo; Perin, Alessandro; Bonomo, Michele; et al.