Association between plasma catecholamine concentration and mortality in hospitalized adults with COVID-19: a secondary analysis of a multicenter randomized trial - Safdar, Basmah; Desir, Gary; Zhou, Bin; Deng, Yanhong; Guo, Xiaojia; Files, D. Clark; Busse, Laurence W.; Shotwell, Matthew; Chappell, Mark C.; Self, Wesley H.; Collins, Sean P. (Critical Care, 2025)