Cost of sales for the Q2 6 months ended June 30, 2023 was $2,100,000 Cost of sales related entirely to Pro Looking, including $1,900,000 of non cash amortization of the acquired intangible assets For developed technology, there was no cost of revenue for the Q2 6 months ended June 30, 2022. Research and development expenses were $85,800,000 for the 2nd quarter ended June 30, 2023, an increase of $12,900,000 compared to $73,400,000 for the same period ended June 30, 2022. Research and development expenses were $169,100,000 For the 6 months ended June 30, 2023, an increase of $27,400,000 compared to $141,700,000 for the same period ended June 30, 2022. The increases in research and development expenses over the prior year periods were primarily attributable to growth of the internal research and development team, Facility related and internal research program costs and the initiation of our Phase 3 Till Vance 301 trial, which were partially offset by a decrease in stock based compensation expense. Selling, general and administrative expenses We are at $21,900,000 for the Q2 ended June 30, 2023, a decrease of $4,400,000 compared to $26,300,000 for the same period ended June 30, 2022.