1. Formalin fixation for optimal concordance of programmed death‐ligand 1 immunostaining between cytologic and histologic specimens from patients with non–small cell lung cancer. Issue 4 (27th October 2020) Authors: Koomen, Bregje M.; van der Starre‐Gaal, Jose; Vonk, Judith M.; von der Thüsen, Jan H.; van der Meij, Jacqueline J. C.; Monkhorst, Kim; Willems, Stefan M.; Timens, Wim; 't Hart, Nils A. Journal: Cancer cytopathology Issue: Volume 129:Issue 4(2021) Page Start: 304 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗