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Commitments and Contingencies
 12 Months Ended
Dec. 31, 2020
Commitments and Contingencies.  
Commitments and Contingencies

Note 10—Commitments and Contingencies

Contracts

We have various agreements with third parties that collectively require payment of termination fees totaling $32.0 million as of December 31, 2020 if we cancel the work within specific time frames, either prior to commencing or during performance of the contracted services.

Development Milestones and Product Royalties

We have licensed a variety of intellectual property from third parties that we are currently developing or may develop in the future. These licenses may require milestone payments during the clinical development processes as well as low single to low double-digit royalties on the net income or net sales of the product. For the year ended December 31, 2020, we paid $5.5 million in technology access fees upon entering new agreements. Milestone payments were not material for the years ended December 31, 2019 and 2018.