Shellshock by jackdracul on DeviantArt

From shell shock to PTSD: proof of war's traumatic history

Shell Shock in WWI

What World War I taught us about PTSD

Shell Shocked Soldier Photograph by Otis Historical Archives

WWI's Secret Shame: Shell Shock was a furious and moving

Coward - Life, Death and Shell-Shock in the Trenches of World War One ~ Kuriositas

79ae171d268ec21c6e79d6cf6eac2c3700bd4090.jpg

Cook: 'Their nerve has gone and they cry like babies' — What the First World War taught us about shell shock

Shell Shock 1919: How the Great War Changed Culture

Who was and what became of the photographed soldier made famous for being shell shocked in WWI? - Quora