Digestive Department,Endoscopy Unit,Hospital del Mar,Parc de Salut Mar,Barcelona 08003,Spain;
Colorectal Cancer Research Group,IMIM(Hospital del Mar Medical Research Institute),Barcelona 08003,Spain;
Department of Medicine,Autonomous University of Barcelona,Barcelona 08003,Spain;
Consulting Service on Methodology for Biomedical Research,IMIM(Hospital del Mar Medical Research Institute),Barcelona 08003,Spain;
Colonoscopy; Quality improvement; No-show patients; Nursing education; Patient compliance; Telephone intervention;