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Ultrasonograms of the three thoracic ultrasound score classification. Echo of lung tissue is observed in the bottom part of each ultrasonogram, separated from the intercostal muscles by the pleura. Two comet tails in TUS = 1 are indicated with arrows and lung consolidations in TUS = 2 are marked with stars. Each square delimited by green lines indicates 1 cm2. ICM, intercostal muscles; P, pleura.
