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Related-Party Transactions	9 Months Ended
Related-Party Transactions	Sep. 30, 2019
Related-Party Transactions
Related-Party Transactions	(8) Related‑Party Transactions On November 16, 2018, the Company entered into a senior secured term loan facility with OrbiMed, an entity affiliated with an owner of a material amount of the Company’s outstanding voting securities. The terms of the debt and related components are further described in more detail in Note 5.