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An infant was born by cesarean section at gestation age 34+1 weeks with birth weight of 2,690 g, who was treated nasal continuous positive airway pressure for 5 days and the final clinical diagnosis was TTN. (A) A chest X-ray shows RDS (grade II); (B,C) ultrasound show alveolar interstitial syndrome in the right lung field and white lung in the left lung field, suggesting TTN, which was consistent with clinical diagnosis. TTN, transient tachypnea of the newborn.
