Yitzhak Ganon avoided doctors for 65 years. But when he became sick recently, his wife insisted that he visit one. Stents were implanted to help his heart in a procedure made more risky because he was missing a kidney. What happened to his other kidney explained his aversion to doctors, according to an account he gave Spiegel Online. While held at the Auschwitz concentration camp, the 85-year-old Mr. Gannon told his doctors, he was the subject of an experiment by Joseph Mengele, the Nazi physician known as “the Angel of Death.” Mr. Ganon was tied down on a table, and, without anesthesia, cut open by Mengele, who then removed his kidney. “I saw the kidney pulsing in his hand and cried like a crazy man,” Mr. Ganon said.