AUTHOR=De Clifford-Faugère Gwenaelle , Nguena Nguefack Hermine Lore , Ménard Nancy , Beaudoin Sylvie , Pagé M. Gabrielle , Guénette Line , Hudon Catherine , Samb Oumar Mallé , Lacasse Anaïs TITLE=Unpacking excessive polypharmacy patterns among individuals living with chronic pain in Quebec: a longitudinal study JOURNAL=Frontiers in Pain Research VOLUME=6 YEAR=2025 URL=https://www.frontiersin.org/journals/pain-research/articles/10.3389/fpain.2025.1512878 DOI=10.3389/fpain.2025.1512878 ISSN=2673-561X