Optical PD-L1 imaging using ultrasound-guided quantitative fluorescence molecular endoscopy combined with durvalumab-680LT in locally advanced esophageal cancer patients - van Ginkel, Y J; van der Waaij, A M; Volkmer, P; Hone-Lopez, S; Bijlsma, A; Van Asselt, S; Van Der Waaij, L; Lub-De Hooge, M; Robinson, D J; Kats-Ugurlu, G; Di Pietro, M; Nagengast, W (Endoscopy, 2025)