Impact of long-term chemotherapy (CTx) on outcomes in pancreatic ductal adenocarcinoma (PDAC): A real-world UK multi-centre study - Bridgewater, John; Lynch, Joanna; Sandhu, Simran Kaur; Hochhauser, Daniel; Shiu, Kai-Keen; Smyth, Elizabeth Catherine; Khan, Khurum Hayat (Journal of clinical oncology, 2025)