1. An NRAS mutation in a case of Erdheim–Chester disease. Issue 2 (2nd September 2014) Authors: Aitken, Sarah J; Presneau, Nadège; Tirabosco, Roberto; Amary, Maria Fernanda; O'Donnell, Paul; Flanagan, Adrienne M Journal: Histopathology Issue: Volume 66:Issue 2(2015) Page Start: 316 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗