WALT past - President (2021-24). Photobiomodulation, Radiation Oncology, Head & Neck Cancer, Prostate Cancer, Cancer Supportive Care, New techn.in Radiation Oncology, Cancer-treatment toxicity. WALT 2018 World Congress Chair. Membre Comité Scient. Permanent en Oncologie-Hématol (CPOH) de l'ANSM (2019-22). Associate Editor JSCC (Supp Care in Cancer). Member MASCC-ISOO Mucositis & Oral Care Boards, and ESMO ToxWork.Group. Board of Directors PBM Foundation (USA). DU PBM in Oncology (IGR,Fr, co-organizer).