When concentration camps were liberated, groups of former prisoners documented the medical experiments carried out on them at Auschwitz, Buchenwald, Dachau, Mauthausen and the predominantly women's camp of Ravensbruck. On March 4, 1945, a declaration by The Prisoner Doctors of Auschwitz declared that prisoners had been treated as experimental animals, and that that Allies should bring to trial those responsible; and that prosecuting perpetrators should prevent coerced human experiments and medical atrocities in the future