CD274 and neoplasm: Curation involved segmentation of malignant lesions within CT scans by thoracic radiologists (such as those shown in Fig. 2b) and annotation of digitized PD-L1 IHC slides (such as those used to train the machine-learning classifier to compute the tumor segmentation mask in Fig. 3a) and adjudication of PD-L1 expression by a thoracic pathologist.