The Swiss descendent of one of Adolf Hitler’s doctors has released details of letters that show how he treated the Nazi dictator for voice problems, NZZ am Sonntag newspaper reported on Sunday. Hitler was treated several times by Carl Otto von Eicken, a German ear, nose and throat specialist, for 10 years from 1935, the newspaper said. For the latest headlines, follow our Google News channel online or via the app. Advertisement The letters from the doctor to a cousin were discovered by Robert Doepgen, von Eicken's great-great-grandson, who found them when researching family archives for a school project. Von...