1. 457 Semaphorin7a expression in breast cancer promotes susceptibility to immune checkpoint blockade. (April 2022) Authors: Elder, Alan; Stoller, Alexander; Kines, Kelsey; Lyons, Traci Journal: Journal of clinical and translational science Issue: Volume 6(2022)Supplement 1 Page Start: 90 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗