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Commitments and contingencies	12 Months Ended
Commitments and contingencies	Dec. 31, 2019
Commitments and contingencies
Commitments and contingencies	11. Commitments and contingencies The Company records a provision for contingent losses when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. As of December 31, 2019, the Company has not recorded a provision for any contingent losses.