Thank you, Billy. Hello, everyone, and thank you all for joining us today. Our first quarter results reflect Zai's solid foundation and track record of consistent execution, and were marked by progress across the entire portfolio. To kickoff today's quarter, I'd like to highlight the progress made on five proprietary platforms which consists of 11 internally developed products with global rights. Building upon last year's proof of concept achievement for ZL-1102, our anti-IL-17A Humabody for chronic plaque psoriasis, Zai recently unveiled preclinical data from four key oncology programs at the 2022 AACR Annual Meeting. With these assets just beginning to enter first-in-human and proof-of-concept clinical studies, we are in the exciting early days of demonstrating Zai's commitment to its in-house discovery and translational research. And of course, this proprietary pipeline complements the advancements within our later-stage partnered pipeline, which is expected to produce numerous pivotal study readouts throughout 2022. As you may recall, at the beginning of this year, we established 2022 strategic priorities that aim to position Zai to lead the next wave of biopharma innovation. I am pleased to say we continue to progress toward achieving these priorities, including progress toward filing the NDA for efgartigimod in China in mid-2022, initiation of a registrational study for bemarituzumab in first-line gastric cancer in Greater China, top line data readout for KarXT from its Phase 3 EMERGENT-2 trial by third quarter 2022, and continued investment in R&D to advance our proprietary pipeline with global rights, including moving ZL-1102 into full global development. Importantly, our commercial team continues to drive significant growth with our four marketed products in Greater China. Before turning the call over to Alan to discuss our oncology franchise in more detail, I'd like to make a brief comment on the ever-evolving COVID-19 situation in China. Zai continues to monitor the potential impact in certain regions in China. While COVID-19 did not have a significant impact on our business in the first quarter, it has presented access difficulties which we believe are likely to have a modest impact in the second quarter in China. Even so, we remain very confident in the underlying trends of our business despite the COVID-19 situation in China and the current macro and geopolitical headwinds. The fundamental drivers of value at Zai Lab are further strengthened by our expanding leadership team, global talent and our ever growing pipeline, the steps we have taken to facilitate access to global capital markets, and our track record of consistent execution in bringing global first and best-in-class medicines to patients in China and beyond. We at Zai Lab remain committed to pursue our overall goal of improving human health worldwide, and to build a leading global biopharmaceutical company. Now, I'd like to turn the call over to Dr. Alan Sandler. Alan?