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Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 0000011 - Disclosure - Fair Value Measurement link:presentationLink link:calculationLink link:definitionLink 0000012 - Disclosure - Short-Term Investments and Cash and Cash Equivalents link:presentationLink link:calculationLink link:definitionLink 0000013 - Disclosure - Merger link:presentationLink link:calculationLink link:definitionLink 0000014 - Disclosure - Intangible Asset link:presentationLink link:calculationLink link:definitionLink 0000015 - Disclosure - Accrued Liabilities link:presentationLink link:calculationLink link:definitionLink 0000016 - Disclosure - Operating Lease link:presentationLink link:calculationLink link:definitionLink 0000017 - Disclosure - License Agreements link:presentationLink link:calculationLink link:definitionLink 0000018 - Disclosure - Convertible Notes link:presentationLink link:calculationLink link:definitionLink 0000019 - Disclosure - Payroll Protection Program Loan link:presentationLink link:calculationLink link:definitionLink 0000020 - Disclosure - Stockholders' Equity (Deficit) link:presentationLink link:calculationLink link:definitionLink 0000021 - Disclosure - Share-Based Compensation link:presentationLink link:calculationLink link:definitionLink 0000022 - Disclosure - Employee Stock Purchase Plan link:presentationLink link:calculationLink link:definitionLink 0000023 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 0000024 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 0000025 - Disclosure - Employee Retirement Plan link:presentationLink link:calculationLink link:definitionLink 0000026 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 0000027 - Disclosure - Summary of Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 0000028 - 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Disclosure - Nature of Organization and Operations (Detail) link:presentationLink link:calculationLink link:definitionLink 0000038 - Disclosure - Summary of Significant Accounting Policies - Narrative (Detail) link:presentationLink link:calculationLink link:definitionLink 0000039 - Disclosure - Summary of Significant Accounting Policies - Schedule of Cash, Cash Equivalents and Restricted Cash (Details) link:presentationLink link:calculationLink link:definitionLink 0000040 - Disclosure - Summary of Significant Accounting Policies - Schedule of Inventory (Details) link:presentationLink link:calculationLink link:definitionLink 0000041 - Disclosure - Summary of Significant Accounting Policies - Property and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 0000042 - Disclosure - Summary of Significant Accounting Policies - Gross-to-Net Sales Adjustments (Details) link:presentationLink link:calculationLink link:definitionLink 0000043 - Disclosure - Summary of Significant Accounting Policies - Schedule of Outstanding Potentially Dilutive Securities Excluded in Calculation of Diluted Net Loss per Share (Detail) link:presentationLink link:calculationLink link:definitionLink 0000044 - Disclosure - Fair Value Measurement - Asset and Liabilities Measured on Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 0000045 - Disclosure - Fair Value Measurement - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000046 - Disclosure - Short-Term Investments and Cash and Cash Equivalents (Details) link:presentationLink link:calculationLink link:definitionLink 0000047 - Disclosure - Merger - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 0000048 - Disclosure - Merger - Schedule of Estimated Fair Value Consideration (Detail) link:presentationLink link:calculationLink link:definitionLink 0000049 - Disclosure - Merger - Summary of Allocation of Purchase Price (Detail) link:presentationLink link:calculationLink link:definitionLink 0000050 - Disclosure - Intangible Asset - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000051 - Disclosure - Intangible Asset - Summary of Estimated Amortization Expense Related to Definite Lived Intangible Asset (Detail) link:presentationLink link:calculationLink link:definitionLink 0000052 - Disclosure - Accrued Liabilities - Schedule of Accrued Liabilities (Detail) link:presentationLink link:calculationLink link:definitionLink 0000053 - Disclosure - Operating Lease - Narrative (Detail) link:presentationLink link:calculationLink link:definitionLink 0000054 - Disclosure - Operating Lease - Summary of Information Related to Lease (Detail) link:presentationLink link:calculationLink link:definitionLink 0000055 - Disclosure - Operating Lease - Schedule of Rent Expense (Detail) link:presentationLink link:calculationLink link:definitionLink 0000056 - Disclosure - Operating Lease - Summary of Future Minimum Lease Payments Required under Operating Lease (Detail) link:presentationLink link:calculationLink link:definitionLink 0000056 - 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Summary of Recognized Compensation Cost Related to Employee and Non-employee Stock-Based Compensation Activity (Detail) link:presentationLink link:calculationLink link:definitionLink 0000064 - Disclosure - Share-Based Compensation - Stock Options Valuation Assumptions (Detail) link:presentationLink link:calculationLink link:definitionLink 0000065 - Disclosure - Employee Stock Purchase Plan - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000066 - Disclosure - Employee Stock Purchase Plan - Calculation Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 0000067 - Disclosure - Income Taxes - Narrative (Detail) link:presentationLink link:calculationLink link:definitionLink 0000068 - Disclosure - Income Taxes - Schedule of Reconciliation of Statutory Federal Income Tax (Detail) link:presentationLink link:calculationLink link:definitionLink 0000069 - Disclosure - Income Taxes - Schedule of Significant Components of Deferred Tax Assets and Liabilities (Detail) link:presentationLink link:calculationLink link:definitionLink 0000070 - 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