Total neoadjuvant FOLFIRINOX versus neoadjuvant gemcitabine-based chemoradiotherapy and adjuvant gemcitabine for resectable and borderline resectable pancreatic cancer (PREOPANC-2 trial: study protocol for a nationwide multicenter randomized controlled trial) - Janssen, Q P; van Dam, J L; Bonsing, B A (BMC Cancer, 2021)