Jean-Baptiste Fassier (MD, PhD) is an occupational physician at Lyon University Hospital and full professor of occupational medicine at the Faculty of Medicine of Claude Bernard Lyon 1 University (UCBL). He is a researcher at UMRESTTE (UMR T 9405), Unité Mixte de Recherche Epidémiologique et de Surveillance Transport Travail Environnement. His research explores work disability prevention and reintegration issues, promoting scientific and professional advancement of optimal methods to promote work participation and work ability of workers with a range of health conditions and work situations (low back pain, breast cancer). He is the principal investigator of the FASTRACS project dedicated to develop, implement and evaluate an intervention to facilitate and sustain return to work after breast cancer.