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Former SS doctor Aribert Heim is the most-wanted suspected Nazi war criminal on a list of hundreds who the Simon Wiesenthal Centre estimates are still free.
It released a list last night of its 10 most wanted Nazis which includes a Perth man fighting extradition to Hungary.
Charles Zentai, 86, is wanted for allegedly torturing and murdering 18-year-old Jewish man Peter Balazs in Budapest during World War II.