Six months ended June 30, 2019 and June 30, 2018
Revenue
The Company recorded approximately $0.3 million in revenue related to product sales for the six months ended June 30, 2019 and $1.6 million in revenue
related to product sales for the six months ended June 30, 2018. The decrease was slightly offset by $0.4 million in other revenue. Other revenue and the
decrease in product revenue are both related to the Company entering into a licensing agreement with medac as discussed further in the Market Access and
Commercial Clinical Adoption section above.