Expert Panel Report 2. Guidelines for the diagnosis and management of asthma. NIHPublication No. 97-4051: April 1997.
2.
The British Thoracic Society. The National Asthma Campaign. The Royal College of Physicians of London et alBritish guidelines on asthma management: 1995 review and position statement. Thorax1997;52 (Suppl 1):S1–S21.