?url_ver=Z39.88-2004&rft_id=MTMT%3A1003811+10.1164%2Fajrccm.154.1.8680673&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Peter+D.&rft.au=+Sly+Peter+D.&rft.aulast=Sly&rft.title=AMERICAN+JOURNAL+OF+RESPIRATORY+AND+CRITICAL+CARE+MEDICINE&rft.issue=1&rft.issn=1073-449X&rft.atitle=Measurement+of+Low-Frequency+Respiratory+Impedance+in+Infants&rft.pages=161-166&rft.date=1996&rft.volume=154&rft.genre=article