Melissa Rivers is reportedly taking legal action against the clinic where a minor surgery was performed on her mother, Joan Rivers, days before her death.

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"Melissa does plan to sue the clinic," a source told Britain's Daily Mail. "She is going to launch a lawsuit."

The legendary comedienne, whose career spanned almost 50 years, was undergoing a minor procedure on her throat at Yorkville Endoscopy in New York City on Aug. 28 before she went into cardiac arrest. She was rushed to Mount Sinai Hospital and was kept on life support in the days that followed. Rivers passed away on Thursday, Sept. 4 at the age of 81.

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Melissa announced her mother's death with a touching statement, adding, "My mother's greatest joy in life was to make people laugh. Although that is difficult to do right now, I know her final wish would be that we return to laughing soon."

Reports quickly circulated that Rivers' personal throat specialist, Dr. Gwen Korovin, performed an unplanned biopsy during the late star's throat procedure even though she wasn't certified to practice at Yorkville Endoscopy. Korovin, who has treated Lady Gaga and Celine Dion, was also accused of taking a selfie with Rivers while she was under anesthesia, according to CNN.

Yet, the hospital refuted claims that a biopsy was performed during the surgery by the specialist who accompanied Rivers. Korovin's lawyer also spoke about the doctor in a lengthy statement.

"Gwen S. Korovin, M.D. is a highly experienced, board certified otolaryngologist. She maintains privileges at one of the city's most prestigious hospitals. She is respected and admired by her peers in the medical community and she is revered by her patients," Michael Kelton said. "For these reasons, neither Dr. Korovin nor her attorneys will have any public comment on recent press reports regarding her practice. We ask that the press please respect Dr. Korovin's personal and professional policy of not discussing her patients, as well as the privacy of her patients."

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Melissa Rivers, Joan Rivers