tell me why, page-9

Total operating expenses for the quarter were $21.0 million, compared to $14.2 million in the same period in 2022. The increase in operating expenses is primarily attributable to an increase of $5.1 million in sales and marketing costs. The increase in sales and marketing costs is a result of the expansion of our commercial organization in preparation of the commercial launch of full-thickness skin defects that happened in the second quarter. In addition, the increase in operating expenses included an increase of $0.6 million in R&D costs, and an increase of $1.1 million in G&A costs, primarily due to an increase in stock compensation expense.