Quality of Life Theory -- Statistical Methods for PROMS and QoL -- Research Methods for PROMS and QoL -- Methodology for Systematic Reviews on Measurement Properties of Patient Reported Outcome Measures (PROMS) -- Quality of life as endpoint in surgical randomised controlled trials -- The role of Patient Reported Outcomes Measures (PROMS) and Health-related Quality-of-Life (HRQoL) in Economic Analysis -- Quality of Life following Bariatric and Metabolic Surgery -- Quality of life after upper GI Surgery -- Patient-reported quality of life after pancreatic and liver surgery -- Quality of Life in Head & Neck Surgical Oncology and Thyroid Surgery -- Quality of Life and Patient Reported Outcomes in Breast Cancer -- Quality of Life After Colorectal Surgery -- Quality of life after lung cancer surgery -- Health-Related Quality of Life and Patient Reported Outcome Measures following Transplantation Surgery.