Las Vegas Sun - Photograph : Joan Rivers-Melissa Rivers

January 16, 2018

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Television personalities Joan Rivers, left, and daughter Melissa Rivers attend the 2013 Matrix New York Women in Communications Awards at the Waldorf-Astoria Hotel on April 22, 2013, in New York.

Evan Agostini / Invision / AP

Television personalities Joan Rivers, left, and daughter Melissa Rivers attend the 2013 Matrix New York Women in Communications Awards at the Waldorf-Astoria Hotel on April 22, 2013, in New York.