Thank you for joining us today. Our first quarter of 2021 was a step in the right direction. In the quarter, we saw a healthy recovery of surgery and use of our products. Strong capital placements continued in Q1 2021 and utilization of installed systems increased through the quarter, indicating a need by our customers to return to surgery. We are in the early innings of commercialization of two new platforms for Intuitive, while advancing digital enablement of our ecosystem. Our teams are making good progress in all three areas. Overall, we are seeing some pandemic recovery, but improvement has been uneven with significant regional variation. Our experience shows that our business rebounds as COVID drops. Starting with procedures, general surgery in the United States was a source of strength in the quarter, driven by bariatric surgery, cholecystectomy and other procedures. Bariatric surgery has been on a multi-quarter gross trajectory, the result of a line development in commercial activities, starting with a capable systems, using Advanced Instruments and combined with a focused commercial team. Ventral hernia surgery is recovering with inguinal hernia tracking behind, aligned to hospital and patient prioritization. In the U.S. gynecology and urology returned to growth after pandemic-related declines. Growth in our second largest market, China, continued to be strong, with multiple specialties contributing. Lastly, procedures that have long diagnostic journeys, such as prostatectomy and thoracic surgery, remain below historical levels. Philip will take you through procedure dynamics in more detail later in the call. On the capital side, new system placements continued to exceed our expectations, with the United States, China, France and the U.K. standing out in the quarter. We know that new system placements are closely tied to anticipated procedure volumes and system utilization in mature markets. System utilization grew in the quarter on average, with significant regional variance due to pandemic differences. Overall, capital strength indicates anticipation of future procedure opportunities by our customers, a significant number systems were part of multisystem deals by hospitals and integrated delivery networks, supporting a theme in which customers who know robotic-assisted surgery well continue to invest with us. Lastly, the use of leasing and other alternative capital placement models ticked up again this quarter. Marshall will take you through capital placements in more detail later in the call. Surveying our business around the world, our business in China is growing quickly from a small base and we are pleased with the performance of our joint venture with Fosun Pharma. We believe there is significant long-term opportunity in China and remind you that it is currently a quota-controlled market. We expect China to be dynamic and competitive in coming years and we are investing in the market to bolster our place as a leading provider to the Chinese healthcare system. In Japan, growth remains healthy, although below pre-pandemic levels. In Europe, our business in France and Germany had performed well considering the pandemic. In the U.K., tightly control surgery resulted in procedure declines, but we have also seen an increased commitment to robotic-assisted surgery in the form of increased capital placements, anticipating a return of da Vinci surgery post-pandemic. Italy and Spain are rapidly returning to growth after substantial pandemic impacts. Speaking to our finances in the quarter, procedures recovered nicely in Q1. System placements came in above plan and I&A revenue per procedure was above our expectations, together driving 18% revenue growth over Q1 2020. Product gross margins were strong in the quarter, largely due to above average system ASPs, lower than expected excess and obsolescence charges, and higher volumes through our factory. Other spending was constrained in the quarter driven by three factors. First, travel and associated costs did not recur at pre-pandemic levels. This spend will increase as COVID wanes and our customers and our staff reach immunity. Second, COVID delayed some work in R&D, leading to some under spend in prototypes. We expect these programs to ramp up as COVID wanes and our labs and development programs recover efficiency. Third, we differed some investments in infrastructure that were unnecessary during the pandemic. We think most of these factors will normalize over time and we consider them one-time events related to the pandemic. We are still in the early stages of developing robotic-assisted surgery globally, and we will continue investing in R&D and our regional capabilities to realize these opportunities. As I mentioned at the start of the call, we are in the early phases of our commercialization efforts for new platforms, which we expect to play out over future quarters. Our single-port surgery platform, da Vinci SP, we performed our first cases in the U.S. and Korea of an important accessory, our SP access port, which enables surgery close to the body wall and eases assistant surgeon access through the single incision. The access port is important in the SP ecosystem, facilitating access and workflow in many procedures in which SP is used. We have had very strong customer feedback on the port to-date. We are also increasing our investments to accelerate new indications in key countries. In the U.S. we have two cleared indications for SP and expect to initiate cases as part of our colorectal IDE this quarter. We have seen strong interest in SP use in various specialties and we are in the process of designing trials for additional indications, including thoracic surgery and other surgical disciplines. Overall, we have received robust customer feedback for SP use under existing clearances. Turning to our flexible robotics platform, Ion, we installed 14 systems in the quarter. We are covering for our from our supply backlog and are meeting demand for Ion procedures at all our installed accounts, while working to fill customer inventory stocking requests and our internal inventory goals, which we expect to complete around midyear. Our PRECISE trial evaluating the ability to reach and diagnosis suspicious pulmonary legions is on track to finish enrollment by Q2 this year. Our Ion clinical performance is meeting our expectations and customer acceptance remains highly encouraging. In our digital ecosystem enablement, we broadened access to our mobile surgeon portal, the My Intuitive app this April as part of our phase launch. My Intuitive is a mobile app that allows surgeons to manage their da Vinci experience, log into da Vinci systems, manage their training and view their operative data from the palm of their hand. Our Intuitive telepresence program supported 45% of all case observations in Q1 2021, up from less than 5% a year ago, a significant achievement accelerated by the pandemic, improving convenience for our customers and reducing costs for our team. Year-over-year surgical simulation usage in the quarter grew roughly 46% over Q1 2020, validating the power of digital tools. Finally, our team made significant progress in automating customer-facing analytics as part of our robotics program consulting services, which allow our customers to analyze the relative performance of their da Vinci programs, now a routine part of customer engagement in the United States. In conclusion, we are seeing adjustments in the healthcare system that favor our offerings, increased appreciation of high quality MIS in the current and post-pandemic environment, increased openness to digital technologies, increased use of analytics to assess care and increasing sensitivity by health systems to total cost to treat. We have and will continue to position ourselves to perform well in this environment. I will now turn the time over to Marshall to take you through our financial performance in greater detail.