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Accounts Payable
9 Months Ended
Sep. 30, 2023
Accounts Payable [Abstract]  
Accounts Payable

5.            Accounts Payable

As of September 30, 2023, current liabilities included accounts payable of $0.3 million, comprised primarily of expenses related to legal fees and patent fees of $0.2 million and clinical trial expenses of $0.1 million. As of December 31, 2022, current liabilities included accounts payable of $0.7 million, comprised primarily of expenses related to drug manufacturing, development and testing services of $0.6 million and legal and patent fees of $0.1 million.