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Disclosure - License, Collaboration, and Funding Agreements - Georgetown Agreement (Details) link:presentationLink link:calculationLink link:definitionLink 0000042 - Disclosure - License, Collaboration, and Funding Agreements - Beth Israel Deaconess Medical Center Agreements (Details) link:presentationLink link:calculationLink link:definitionLink 0000043 - Disclosure - License, Collaboration, and Funding Agreements - Research and Development Incentive Program (Details) link:presentationLink link:calculationLink link:definitionLink 0000044 - Disclosure - License, Collaboration, and Funding Agreements (Details) link:presentationLink link:calculationLink link:definitionLink 0000045 - Disclosure - Fair Value of Financial Assets and Liabilities - Measured on a Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 0000046 - Disclosure - Fair Value of Financial Assets and Liabilities - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000047 - 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