Joan, an iconic television personality and comedian, died on Sept. 4, 2014, aged 81. In May, Melissa settled a multi-million dollar medical malpractice lawsuit regarding the death, which was determined to have resulted from a predictable complication of medical therapy.
"I hope that this sparks conversation about care and policy at ambulatory surgical centers," Melissa told ET at the time.
"If talking about what happened to my mother can help even one other family, it will have been worth it," she continued. "As painful as it's been to go through this, Cooper and I are grateful for the speedy resolution which gave us answers to so many of our unanswered questions."