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Accrued Expenses and Other Current Liabilities	6 Months Ended
Accrued Expenses and Other Current Liabilities	Jun. 30, 2022
Accrued Expenses and Other Current Liabilities [Abstract]
Accrued Expenses and Other Current Liabilities	6. Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities consisted of the following (in thousands): Accrued external research and development includes $ 4.6 million in grant monies received from CEPI during the six months ended June 30, 2022 not yet applied against research and development expense. June 30, December 31, 2022 2021 Accrued external research and development $ 7,815 $ 1,501 Accrued bonuses 2,312 2,294 Accrued professional fees and other 1,687 692 Accrued interest 30 32 $ 11,844 $ 4,519