 5.1. Simulated Patient Encounter The simulated patient case was written by an oncologist and a psycho-oncologist at the medical oncology unit and the psycho-oncology clinic at the Jules Bordet Institute, Cancer Center of the Université Libre de Bruxelles. The simulated patient case was developed to increase physician uncertainty about predefined medico-psycho-social components and available evidence-based treatments. The simulated patient is a 36-year-old woman with advanced cancer. She is facing a third recurrence hepatic metastasis of a breast cancer that had previously been treated with surgery, hormone therapy, radiation therapy and chemotherapy. She has agreed to start a new chemotherapy treatment. The scenario specifies that the patient has requested a meeting with a physician to help her cope with her treatment decision. Participants will be instructed to address and respond to the concerns of the simulated patient and to take the time they need for doing that. The simulated patient will be played by an actress experienced in simulated patient encounters and will be trained to maintain a standardized script and behavior. Regular feedback sessions will be held to help the actress maintain reproducibility 50. The simulated patient encounters will take place at the Communication Laboratory LabComm of the Centre de Psycho-Oncologie Brussels, Belgium. 