When soldiers acted against orders like this, they were normally made to appear at a court-martial. However, because of Sassoon's good record as a soldier, he was given a chance to change his mind. His friend Robert Graves told the senior officers how depressed Sassoon was and said that he was too ill to fight. It was decided to send him to a hospital in Edinburgh, which specialised in dealing with officers who were suffering from mental illness. Sassoon did not like being there, because he felt that he was not really ill. He was greatly influenced by his doctor, W. H. R. Rivers, who became a kind of father figure to him. While he was a patient in Edinburgh, he met another young officer, called Wilfred Owen. Owen admired Sassoon's poetry and the two became close friends. Sassoon helped Owen to write better poetry; this is known because the manuscript of one of Owen's greatest poems, "Anthem for Doomed Youth", still exists showing corrections in Sassoon's writing. Sassoon and Owen were separated after a few months, when Sassoon came to the end of his time at the hospital and agreed to go back to his regiment.