epa04377072 (FILE) A file picture dated 26 April 2010 shows US comedienne Joan Rivers during her 2010 Tribeca Film Festival opening of 'Joan Rivers: A Piece of Work' in New York, New York, USA. According to media reports, Rivers, 81, remains unconscious after going into cardiac arrest during throat surgery in New York on 28 August 2014. She is said to be on a life-supporting system. EPA/JASON SZENES
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