Washington (CNN) A woman who accused President Donald Trump of sexually assaulting her decades ago is asking him for a DNA sample to compare to male genetic material found on the dress she says she wore during the alleged encounter.

E. Jean Carroll, an advice columnist, alleged in a lawsuit filed in November that Trump attacked her at Bergdorf Goodman, a luxury department store in Manhattan, in the 1990s. Trump has repeatedly denied the allegation, saying last June that he had "never met this person in my life."

Her lawyers served an attorney for Trump with papers on Thursday requesting the President's DNA be obtained on March 2.

The papers included test results from a black Donna Karan dress Carroll says she wore the day of the alleged assault, from which a lab collected biological material.

The results note that "acid phosphatase activity, a presumptive indication of the presence of semen, was not detected in any of thirty-three fluorescent stains tested on the dress." However, samples tested from the dress sleeve contained genetic material that analysts described as coming from at least one "male," according to the filing.

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