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Interleukin 10 (IL10) in tracheal fluids of ventilated infants during the first week of life. IL10 concentrations are shown in log10 scale. Three groups of infants are shown: preterm infants with CLD, preterm without CLD, and term infants. Fewer tracheal fluid specimens were obtained beyond the first 4 days of life in non-CLD preterm and term infants (closed circles).
