Thanks, Lishan and good afternoon, everyone. I'll be brief as our financial results for the quarter-ended March 31, 2019 were reported to the SEC on Form 10-Q this past week, and our related press release was published this morning. The Form 10-Q is available at sec.gov and on our website where we also have posted the press release. So with regard to the financial results, our research and development expense for the first quarter of 2019 were $1.45 million, about $80,000 than the fourth quarter. Consistent with the remarks we made last quarter through the end of this current quarter, R&D increased as we pushed CarpX and EsoCheck towards FDA clearance, PortIO and DisappEAR completing their animal studies, as well as milestone breakthroughs for NextFlo as Lishan explained. Third-party contract development and manufacturing expenses accounted for nearly 75% of our year-over-year increase which was around $890,000. General and administrative expenses were $1.7 million for the first quarter of 2019 compared with $1.4 million for the same period in 2018, and were lower by about $250,000 sequentially. The increases are due principally to have compensation related costs including increased headcount and stock-based compensation expense, as well as other operating costs, largely related to pre-commercial launch activities including tradeshows, travel and key opinion leader events. PAVmed reported an operating loss for the three months ended March 31, 2019 of $3.1 million, and a GAAP net loss attributable to common stockholders of $3.6 million or a loss of $0.13 per common share. The difference between the two principally reflects changes in the fair value and other related non-cash charges affecting GAAP accounting for the convertible debt and you can look to the 10-Q for a whole lot more detail in regards to that. Our press release and the 10-Q provides substantially more detail related to the non-cash charges occurring in the current and prior periods, as well as the various security exchanges undertaken in the first quarter of last year to mitigate some of those events. Also, the press release provides a table entitled non-GAAP measures, which highlight these amounts along with interest expense and other non-cash charges, which are predominantly depreciation and stock-based compensation, so that the reader might have a better understanding of the company's financial performance. We'll notice from that table that after addressing the GAAP loss by these charges, the company reported non-GAAP adjusted loss for the three months ended March 31, 2019 of $2.5 million, or $0.09 per common share. PAVmed had cash of $4.2 million as of March 31, 2019, which is a change of approximately $4 million during the first quarter. Note, that a significant part of the cash used, namely $1.3 million of the $4 million reflected a reduction of the payables and accrued liabilities. Due where after the quarter ended, we increased cash by $3.7 million which offsets the first quarter burn almost entirely. With that operator, let us open it up for questions from our audience.