Thanks, Rob. Good morning, everyone. I'll start my comments today with a review of our fourth quarter 2023 results, and then discuss our 2024 outlook. Q4 revenue increased 45% to $6.3 million compared to $4.4 million in Q4 2022. During the fourth quarter, we placed six Growth Direct systems compared to two in the fourth quarter last year. The six systems this quarter represent the most we placed since Q3 2021. We also completed nine validations in the quarter. Product revenue, which is comprised of systems and consumables, increased 45% to $4.1 million in the quarter compared to $2.8 million in Q4 last year. The growth in product revenue was primarily driven by the higher number of systems placed in the quarter. Consumable revenue in Q4 increased on a year-over-year basis, but was down slightly on a sequential basis due mainly to the timing of customer shipments. Service revenue also increased 45% to $2.2 million in the fourth quarter compared to $1.5 million in Q4 last year. The increase was driven by a higher level of validation activity and higher recurring service contract revenue. Fourth quarter recurring revenue, which consists of consumables and annual service contracts, increased 13% to $3.3 million compared to $2.9 million in Q4 last year, driven by growth in both consumables and service contract revenue. Non-recurring revenue was $3.0 million in Q4 compared to $1.5 million in the prior year quarter. Turning to gross margins. Product margins were negative $0.6 million in Q4 compared to negative $2.4 million in the fourth quarter last year. The improvement was attributable to higher product revenue, higher production volumes in both systems and consumables, and benefits from actions taken by the company to lower product costs and increase manufacturing efficiency, including enhancements made to our automated consumables manufacturing line earlier in the year. Service margins were positive at approximately $0.4 million in Q4 compared to negative $0.2 million last year. Higher revenues and increasing productivity drove the improvement in service margins in the quarter. On a combined basis, our fourth quarter gross margin was near breakeven at negative $0.2 million or negative 3% of revenues, representing a 24 percentage point improvement on a sequential basis and a 56 percentage point improvement compared to the fourth quarter last year. Looking at this margin improvement in another way, our total revenue increased 45% in the fourth quarter, while our total cost of revenue decreased 7% over the same period, driving a significant improvement. Looking forward, we expect continued margin improvement in 2024 and beyond as we continue to grow revenues, reduce product costs, drive higher manufacturing efficiency, control manufacturing overhead costs and increase service productivity. Continuing down the P&L, total operating expenses were $12.0 million in the fourth quarter, consisting of $3.2 million in sales and marketing, $3.3 million in R&D and $5.5 million in G&A. This compares to total operating expenses of $14.7 million in the fourth quarter of 2022. The decrease was largely due to non-recurring costs incurred in the fourth quarter last year associated with the strategic review process initiated by our Board of Directors in that period, as well as cost savings in Q4 this year, resulting from the restructuring plan implemented in August 2022. Net loss was $11.2 million in Q4. This compares to a net loss of $16.4 million in Q4 last year. This improvement was largely due to higher revenue, better gross margins and lower operating expenses, showing the broad financial benefits of the progress we made against several of our strategic focus areas in 2023. Net loss per share was $0.26 in Q4 compared to a net loss per share of $0.39 in the prior year quarter. With respect to non-cash expenses and capital expenditures, depreciation and amortization was $0.8 million, stock compensation expense was $1.0 million and capital expenditures were $0.4 million in the fourth quarter. I'll now turn to our 2024 outlook, where my comments will primarily be focused on the full-year. Given current market conditions, our outlook reflects some uncertainty related to customer budgets and the timing and scale of customer purchase decisions. With that context, we expect total revenue to be at least $27 million for the full-year 2024, which assumes we will place at least 20 systems. This implies year-over-year revenue growth of at least 20%. Assuming typical seasonality, with revenue and placement stepping down from Q4 to Q1 on a sequential basis, we expect total revenue of at least $5.5 million in Q1, which assumes at least three system placements. We then expect revenue and placements in Q2 and Q3 to be higher than Q1, and then peak in Q4. While we anticipate launching Growth Direct, Rapid Sterility by midyear, our guidance assumes any contribution from this new offering will be modest in 2024, given our typical systems sales cycle. Looking at consumables, we expect revenues to increase sequentially in Q1 compared to Q4, and then continue to increase sequentially each quarter over the balance of the year as more systems complete validation and ramp toward routine use. With respect to service, we expect revenues to be between $2.0 million and $2.5 million each quarter, with variability primarily driven by the timing of validation activities. We expect to complete at least 16 validations in 2024, with at least three in the first quarter. Turning to gross margins. We expect Q1 margins to be lower than Q4 due to the seasonality impact I mentioned earlier. Thereafter, based on our revenue outlook, the benefits from ongoing cost reduction and manufacturing efficiency initiatives and products, and increasing productivity and service, we expect our gross margin percentage to improve, but still be negative in Q2, and then be single-digit positive in Q3 and Q4 as well as for the full-year. We expect service margins to be positive in all four quarters and for product margins to improve each quarter as the year progresses. We expect operating expenses to be in the range of $48 million to $52 million in 2024, with depreciation and amortization of approximately $3 million, stock compensation of approximately $4.5 million, CapEx of approximately $3 million and other income, which is comprised primarily of interest income of approximately $3 million in 2024. Finally, we expect cash burn of roughly $40 million in 2024, providing cash runway at least into the second half of 2026. This assumes a meaningful benefit from networking capital, including inventory reductions. That concludes my comments. So at this point, we'll open the call up for questions. Operator?