1. Global Initiative for Asthma. Global Strategy for Asthma Management and Prevention, 2019. [ginasthma.org]
2. Bel EH. Clinical phenotypes of asthma. Curr Opin Pulm Med. 2004;10:44-50.
3. Moore WC, Meyers DA, Wenzel SE, Teague WG, Li H, Li X, D'Agostino R, Jr., Castro M, Curran-Everett D, Fitzpatrick AM, Gaston B, Jarjour NN, Sorkness R, Calhoun WJ, Chung KF, Comhair SA, Dweik RA, Israel E, Peters SP, Busse WW, Erzurum SC, Bleecker ER, National Heart L, Blood Institute's Severe Asthma Research P. Identification of asthma phenotypes using cluster analysis in the Severe Asthma Research Program. Am J Respir Crit Care Med. 2010;181:315-23.
4. Wenzel SE. Asthma phenotypes: the evolution from clinical to molecular approaches. Nat Med. 2012;18:716-25.
5. Anderson GP. Endotyping asthma: new insights into key pathogenic mechaniasms in a complex, heterogeneous disease. Lancet. 2008;372:1107-19.
6. Bickel S, Popler J, Lesnick B, Eid N. Impulse oscillometry: interpretation and practical applications. Chest. 2014;146:841-47.
7. Dubois AB, Brody AW, Lewis DH, Burgess BF, Jr. Oscillation mechanics of lungs and chest in man. J Appl Physiol. 1956;8:587-94.
8. Oostveen E, MacLeod D, Lorino H, Farre R, Hantos Z, Desager K, Marchal F, Measurements ERSTFoRI. The forced oscillation technique in clinical practice: methodology, recommendations and future developments. Eur Respir J. 2003;22:1026-41.
9. Leach CL, Davidson PJ, Hasselquist BE, Boudreau RJ. Lung deposition of hydrofluoroalkane-134a beclomethasone is greater than that of chlorofluorocarbon fluticasone and chlorofluorocarbon beclomethasone : a cross-over study in healthy volunteers. Chest. 2002;122:510-6.
10. Carvalho TC, Peters JI, Williams RO, 3rd. Influence of particle size on regional lung deposition--what evidence is there? Int J Pharm. 2011;406:1-10.
11. Sugawara H, Saito A, Yokoyama S, Tsunematsu K, Takahashi H. Comparison of therapeutic effects of inhaled corticosteroids on three subtypes of cough variant asthma as classified by the impulse oscillometry system. Respir Res. 2019;20:41.
12. Takeda T, Oga T, Niimi A, Matsumoto H, Ito I, Yamaguchi M, Matsuoka H, Jinnai M, Otsuka K, Oguma T, Nakaji H, Chin K, Mishima M. Relationship between small airway function and health status, dyspnea and disease control in asthma. Respiration. 2010;80:120-6.
13. Oppenheimer BW, Goldring RM, Herberg ME, Hofer IS, Reyfman PA, Liautaud S, Rom WN, Reibman J, Berger KI. Distal airway function in symptomatic subjects with normal spirometry following World Trade Center dust exposure. Chest. 2007;132:1275-82.
14. Saetta M, Turato G. Airway pathology in asthma. Eur Respir J Suppl. 2001;34:18s-23s.
15. Galant SP, Komarow HD, Shin HW, Siddiqui S, Lipworth BJ. The case for impulse oscillometry in the management of asthma in children and adults. Ann Allergy Asthma Immunol. 2017;118:664-71.
16. Zinellu E, Piras B, Ruzittu GGM, Fois SS, Fois AG, Pirina P. Recent Advances in Inflammation and Treatment of Small Airways in Asthma. Int J Mol Sci. 2019;20.
17. Tamaoki J. Asthma Prevention and Management Guideline 2018. Arerugi. 2018;67:1263-68.
18. Smith HJ RP, Goldman MD. Forced oscillation technique and impulse oscillometry. European Respiratory Monograph. 2005;31:72-105.
19. Goldman MD. Clinical application of forced oscillation. Pulm Pharmacol Ther. 2001;14:341-50.
20. Nieto A, Pamies R, Oliver F, Medina A, Caballero L, Mazon A. Montelukast improves pulmonary function measured by impulse oscillometry in children with asthma (Mio study). Respir Med. 2006;100:1180-5.
21. Vogel J SU. Impulse Oscillometry. Analysis of lung mechanics in general practice and clinic, epidemiological and experimental research. Frankfurt: PMI-Verlagsgruppe. 1994;148-152.
22. Arioka H, Kobayashi K, Kudo K, Kabe J. Validation Study of a Disease-specific Module, the Asthma Health Questionnaire (AHQ) Using Japanese Adult Asthmatic Patients. Allergology International. 2005;54:10.
23. Arioka H. Bronchial asthma and QOL. Nihon Naika Gakkai Zasshi. 2006;95:1507-13.
24. Schatz M, Sorkness CA, Li JT, Marcus P, Murray JJ, Nathan RA, Kosinski M, Pendergraft TB, Jhingran P. Asthma Control Test: reliability, validity, and responsiveness in patients not previously followed by asthma specialists. J Allergy Clin Immunol. 2006;117:549-56.
25. Dweik RA, Boggs PB, Erzurum SC, Irvin CG, Leigh MW, Lundberg JO, Olin AC, Plummer AL, Taylor DR, American Thoracic Society Committee on Interpretation of Exhaled Nitric Oxide Levels for Clinical A. An official ATS clinical practice guideline: interpretation of exhaled nitric oxide levels (FENO) for clinical applications. Am J Respir Crit Care Med. 2011;184:602-15.
26. Hamid Q, Song Y, Kotsimbos TC, Minshall E, Bai TR, Hegele RG, Hogg JC. Inflammation of small airways in asthma. J Allergy Clin Immunol. 1997;100:44-51.
27. Kraft M, Djukanovic R, Wilson S, Holgate ST, Martin RJ. Alveolar tissue inflammation in asthma. Am J Respir Crit Care Med. 1996;154:1505-10.
28. Verbanck S. Physiological measurement of the small airways. Respiration. 2012;84:177-88.
29. Ueda T, Niimi A, Matsumoto H, Takemura M, Hirai T, Yamaguchi M, Matsuoka H, Jinnai M, Muro S, Chin K, Mishima M. Role of small airways in asthma: investigation using high-resolution computed tomography. J Allergy Clin Immunol. 2006;118:1019-25.
30. van Veen IH, Sterk PJ, Schot R, Gauw SA, Rabe KF, Bel EH. Alveolar nitric oxide versus measures of peripheral airway dysfunction in severe asthma. Eur Respir J. 2006;27:951-6.
31. de Lange EE, Altes TA, Patrie JT, Parmar J, Brookeman JR, Mugler JP, 3rd, Platts-Mills TA. The variability of regional airflow obstruction within the lungs of patients with asthma: assessment with hyperpolarized helium-3 magnetic resonance imaging. J Allergy Clin Immunol. 2007;119:1072-8.