Fotopoulou, G. Poularas, I. Kokkoris, S. Charitidou, E. Boletis, I. Brountzos, E. Benetos, A. Zakynthinos, S. Routsi, C., Renal Resistive Index on Intensive Care Unit Admission Correlates With Tissue Hypoperfusion Indices and Predicts Clinical Outcome, Shock (Augusta, Ga.), (57), 501-507, 2022, NLM (Medline),