Footnotes

• Sources of funding: Physician Services Incorporated Foundation and Sudbury General Hospital Emergency Trauma Fund. Inhalers were supplied by Astra Pharma, Inc.

• For correspondence: Dr B H Rowe, Division of Emergency Medicine, University of Alberta, Room 1G1.63 WMC, 8440-112 Street, Edmonton, Alberta T6G 2B7, Canada. FAX 780-407-3314.

• ↵* See glossary.