Fig. 1From: The correlation between lung ultrasound scores and outcomes of high-flow nasal cannula therapy in infants with severe pneumoniaPulmonary ultrasound 12 zone diagram. Left lung zones: L1, left upper anterior; L2, left lower anterior; L3, left upper lateral; L4, left lower lateral; L5, left upper posterior; L6, left lower posterior. R refers to the corresponding area on the right sideBack to article page