Meteorological confounders must be considered

BMJ 1996; 312 doi: https://doi.org/10.1136/bmj.312.7046.1607a (Published 22 June 1996) Cite this as: BMJ 1996;312:1607
  1. Jon G Ayres
  1. Professor of respiratory medicine Birmingham Heartlands Hospital Birmingham B9 5SS

    EDITOR,—Roger Buchdahl and colleagues report a study of attendances by children to an accident and emergency department with acute wheezy episodes.1 These were measured against day to day variations in gaseous pollutants using the OPSIS system situated on the roof of a hotel …

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