Gulapa, K., Sutherasan, Y., Junhasavasdikul, D. and Theerawit, P. 2023. The relationship of lung recruitability assessment by recruitment to inflation ratio, electrical impedance tomography, and lung ultrasound: The research protocol: Recruitability assessment method by bedside imaging tools. Clinical Critical Care. 31, 1 (Feb. 2023), 2023:e0004. DOI:https://doi.org/10.54205/ccc.v31.260228.