Topical nitroglycerin to detect reversible microcirculatory dysfunction in patients with circulatory shock after cardiovascular surgery: an observational study. - Greenwood, John C.; Talebi, Fatima M.; Jang, David H.; Spelde, Audrey E.; Tonna, Joseph E.; Gutsche, Jacob T.; Horak, Jiri; Acker, Michael A.; Kilbaugh, Todd J.; Shofer, Frances S.; Augoustides, John G. T.; Bakker, Jan; et al. (Scientific Reports, 2022)