Medicine on the Western Front (part two) - The National Archives

BBC Inside Out - Shell Shock

Shell Shock After The First World War

How PTSD went from 'shell-shock' to a recognized medical diagnosis

Masculinity, Shell Shock, and Emotional Survival in the First World War

Is there any evidence that the soldier in this photo has shell shock? (Alternate question: is the soldier in this photo a good example of shell shock?) : r/AskHistorians

War Psychiatry and Shell Shock International Encyclopedia of the First World War (WW1)

Grangegorman and the treatment of soldiers' trauma

Real footage of severely shell-shocked World War I veterans : r/videos

Shell Shock in World War I - HISTORY CRUNCH - History Articles

Opinion From the Trenches in Ukraine, We Know Our Enemy Is in