Hal Wolf, president and CEO of the Healthcare Information and Management Systems Society, welcomes HIMSS21 attendees during the opening keynote, ‘Preserving the Health of a Population – Early Lessons from a Global Pandemic’ on Monday, Aug. 9, 2021 at The Venetian in Las Vegas. The digital health industry conference is expected to bring about 18,000 attendees to Las Vegas. (Healthcare Information and Management Systems Society)