ACKNOWLEDGEMENTS
M.R. Miller: University Hospital Birmingham NHS Trust,
Birmingham, UK; J. Hankinson: Hankinson Consulting, Inc.,
Valdosta, GA, USA; V. Brusasco: Universita
`
degli Studi di
Genova, Genova, Italy; F. Burgos: Hospital Clinic Villarroel,
Barcelona, Spain; R. Casaburi: Harbor UCLA Medical
Center, Torrance, CA, USA; A. Coates: Hospital for Sick
Children, Toronto, ON, Canada; R. Crapo and R. Jensen:
LDS Hospital, Salt Lake City, UT, USA; P. Enright: 4460
E Ina Rd, Tucson, AZ, USA; C.P.M. van der Grinten:
University Hospital of Maastrict, Maastricht, the
Netherlands; P. Gustafsson: Queen Silvias Children’s
Hospital, Goteborg, Sweden; D.C. Johnson: Massachusetts
General Hospital and Harvard Medical School, Boston, MA,
USA; N. MacIntyre: Duke University Medical Center,
Durham, NC, USA; R. McKay: Occupational Medicine,
Cincinnati, OH, USA: D. Navajas: Universitat de Barcelona
- IDIBAPS, Barcelona, Spain; O.F. Pedersen: University of
Aarhus, Aarhus, Denmark; R. Pellegrino: Azienda
Ospedaliera S. Croce e Carle, Cuneo, Italy; G. Viegi: CNR
Institute of Clinical Physiology, Pisa, Italy; J. Wagner:
Pharmaceutical Research Associates, Inc., Lenexa, KS, USA.
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be used to provide the 0.01-s sampling interval. The record
length will vary, depending on the number of data points
present in the flow–time portions of the record. The curve data
must include o0.25 s of data points prior to the onset of the
inspiratory or expiratory manoeuvre.
Volume–time curves may be calculated by adding the flow–
time values (mL?s
-1
) and multiplying the sum by 0.01 s. To
obtain the highest precision, the sum of the flow values should
be calculated for each volume data point before multiplying by
0.01 s.
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VOLUME 26 NUMBER 2 EUROPEAN RESPIRATORY JOURNAL