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Product Revenue (Tables)
3 Months Ended
Mar. 31, 2021
Product Revenue  
Schedule of major categories of sales-related deductions included in trade receivable allowances

    

Sales Discounts

    

Chargebacks

    

Fee for Service

Balance, January 1, 2021

$

2

$

5

$

10

Provision related to current period sales

6

15

34

Adjustment related to prior period sales

 

 

 

Credit or payments made during the period

Balance, March 31, 2021

$

8

$

20

$

44