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Pulmonary diffusing capacity in healthy caucasian children

Previous studies of pulmonary diffusing capacity in children differed greatly in methodologies; numbers of subjects evaluated, and were performed prior to the latest ATS/ERS guidelines. The purpose of our study was to establish reference ranges for the diffusing capacity to carbon monoxide (DLCO) and alveolar volume (VA) in healthy Caucasian children using current international guidelines and contemporary equipment.