1. Health Insurance Review and Assessment Service [Internet]. Wonju: Health Insurance Review and Assessment Service;2017. cited 2017 May 16. Available from:
http://www.hira.or.kr.
2. Global Initiative for Asthma. Global strategy for asthma management and prevention [Internet]. Bethesda: Global Initiative for Asthma;2017. updated 2017. cited 2017 May 16. Available from:
http://www.ginasthma.org.
3. Adams RJ, Fuhlbrigge A, Guilbert T, Lozano P, Martinez F. Inadequate use of asthma medication in the United States: results of the asthma in America national population survey. J Allergy Clin Immunol. 2002; 110:58–64.
4. Cazzoletti L, Marcon A, Janson C, Corsico A, Jarvis D, Pin I, et al. Asthma control in Europe: a real-world evaluation based on an international population-based study. J Allergy Clin Immunol. 2007; 120:1360–1367.
5. Haahtela T, Laitinen LA. Asthma programme in Finland 1994-2004. Report of a Working Group. Clin Exp Allergy. 1996; 26:Suppl 1. 1–24.
6. Haahtela T, Tuomisto LE, Pietinalho A, Klaukka T, Erhola M, Kaila M, et al. A 10 year asthma programme in Finland: major change for the better. Thorax. 2006; 61:663–670.
7. Peura S, Martikainen J, Klaukka T. Use and costs of asthma medication in 1980s. Publication M: 72. Helsinki: Social Insurance Institution;1990.
8. Klaukka T, Hirvonen A, Karhula K, Peura S. Good and bad news from asthma. Asthma barometer 2004. Suom Laakaril. 2004; 42:4002–4004.