AUTHOR=Chan Theodore C. TITLE=Specialty grand challenge: emergency health services JOURNAL=Frontiers in Disaster and Emergency Medicine VOLUME=1 YEAR=2023 URL=https://www.frontiersin.org/journals/disaster-and-emergency-medicine/articles/10.3389/femer.2023.1310474 DOI=10.3389/femer.2023.1310474 ISSN=2813-7302