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

This informative film from historian Dan Snow asked why, 100 years on, we still have no effective way of treating traumatised veterans

Experience (Part I) - The Other Wars

Shell shock wwi hi-res stock photography and images - Alamy

Is shell shock/battle fatigue/PTSD a relatively modern condition? Are there any documented examples from before WW1? - Quora

United States Participation in World War One

War's Secret Shame: Shell Shock - Alexander Street, a ProQuest Company

Shell shock cover-up at Passchendaele

Pupil of the Nation - The Delacorte Review

Shell Shock 1919: How the Great War Changed Culture, Fishko Files

The Shock of War, History

The Project Gutenberg eBook of Winning a Cause, by John Gilbert Thompson and Inez Bigwood