AUTHOR=Karemaker John M. TITLE=Case report: Extreme respiratory sinus arrhythmia in a non-athlete female student - a peculiar finding at the Physiology practicum JOURNAL=Frontiers in Neuroscience VOLUME=18 YEAR=2024 URL=https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnins.2024.1507269 DOI=10.3389/fnins.2024.1507269 ISSN=1662-453X