AUTHOR=Olson Ken R. TITLE=Hydrogen sulfide: both feet on the gas and none on the brake? JOURNAL=Frontiers in Physiology VOLUME=4 YEAR=2013 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2013.00002 DOI=10.3389/fphys.2013.00002 ISSN=1664-042X