All recruited patients will receive the same standard care, only those who will be allocated to the experimental group will receive the intervention. This project will run over total period of 21 months. Patients will be offered to join the project over a duration of 12 months. With the help of oncologists and surgeons, an oral agreement will be collected from the eligible patients who agree to be contacted by an investigator of the study. Once the patients have entered the study, they will be followed for 26 weeks, including 12 weeks of intervention or control period and 12 weeks of follow-up to evaluate if the expected intervention-induced behavioural change is maintained: