Article Information
vol. 22 no. 2 286-289
PubMed
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History
- Received December 9, 2002
- Accepted February 24, 2003
- Published online August 1, 2003.
Copyright & Usage
© ERS Journals Ltd
Author Information
- 1Respiratory Epidemiology Unit, Joint Depts of Epidemiology and Biostatistics, and Occupational Health, McGill University, 2Division of Clinical Epidemiology, Pharmacoepidemiology Unit, Royal Victoria Hospital, Montreal, QC, and 3Respiratory Division, University Hospital, Saskatoon, SK, Canada
- P. Ernst, Division of Clinical Epidemiology, Royal Victoria Hospital, 687 Pine Avenue West, Montreal, QC, Canada H3A 1A1. Fax: 1 5148431493. E‐mail: pierre.ernst@clinepi.mcgill.ca