William Guglielmo Niederland
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William Guglielmo Niederland (1904 - 1993) was a German-American psychoanalyst. In the 1950's, he began work with concentration camp survivors. He investigated and documented the particular characteristics of their reactions, coining the term "survivor syndrome" in 1961. He later worked with the Vietnam Veteran Working Group in restoring the concept of post-traumatic stress disorders to the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders (DSM-III) in 1980.