Additional file 2: of Outcomes following the implementation of a quality control campaign to decrease sternal wound infections after coronary artery by-pass grafting LindblomRickard LytsyBirgitta SandstrÜmCamilla LigataNadjira LarssonBeata RansjÜUlrika SwenneChristine 2015 Questionnaire in English, translated. (DOCX 13 kb)