References
- Irwin RS, French CT, Smyrnios NA, et al. Interpretation of positive results of a methacholine inhalation challenge and 1 week of inhaled bronchodilator use in diagnosing and treating cough-variant asthma. Arch Intern Med 1997; 157(17): 1981–7
- Shrestha M, Parupia H, Andrews B, et al. Metered-dose inhaler technique of patients in an urban ED: prevalence of incorrect technique and attempt at education. Am J Emerg Med 1996; 14(4): 380–4
- Kuschner WG, Chitkara RK, Sarinas PS. Occupational asthma: practical points for diagnosis and management. West J Med 1998; 169(6): 342–50
- Kraft M, Wenzel SE, Bettinger CM, et al. The effect of salmeterol on nocturnal symptoms, airway function, and inflammation in asthma. Chest 1997; 111(5): 1249–54
- Weersink EJ, van Zomeren EH, Koeter GH, et al. Treatment of nocturnal airway obstruction improves daytime cognitive performance in asthmatics. Am J Respir Crit Care Med 1997; 156(4 Pt l): 1144–50
- American Thoracic Society. Lung function testing: selection of reference values and interpretative strategies. Am Rev Respir Dis 1991; 144(5): 1202–18
- O'Connor GT, Weiss ST. Clinical and symptom measures. Am J Respir Crit Care Med 1994; 149(2 Pt 2): S21–8
- National Asthma Education and Prevention Program. Highlights of the Expert Panel Report 2: guidelines for the diagnosis and management of asthma. Bethesda: National Institutes of Health, 1997; publication No. 97–4051A
- Lipworth BJ. Fortnightly review: modern drug treatment of chronic asthma. BMJ 1999; 318(7180): 380–4
- Drazen JM, Israel E, O'Byrne PM. Treatment of asthma with drugs modifying the leukotriene pathway. N Engl J Med 1999; 340(3): 197–206
- Spitzer WO, Suissa S, Ernst P, et al. The use of beta-agonists and the risk of death and near death from asthma. N Engl J Med 1992; 326(8): 501–6
- Drazen JM, Israel E, Boushey HA, et al. Comparison of regularly scheduled with as-needed use of albuterol in mild asthma. Asthma Clinical Research Network. N Engl J Med 1996; 335(12): 841–7
- Kuschner WG, Hankinson TC, Wong HH, et al. Nonprescription bronchodilator medication use in asthma. Chest 1997; 112(4): 987–93
- Nunn AJ, Gregg I. New regression equations for predicting peak expiratory flow in adults. BMJ 1989; 298(6680): 1068–70