Lutfiyya, M.N., McCullough, J.E. and Lipsky, M.S. (2012) Health service deficits and school-aged children with asthma: A population-based study using data from the 2007-2008 national survey of child health. Journal of the National Medical Associ-ation, 104, 275-285.
 Stranges, E., Merrill, C.T. and Steiner, C.A. (2012) Hospital stays related to asthma for children, 2006. HCUP Statistical Brief #58, August 2008. Agency for Healthcare Research and Quality, Rockville. http://www.hcup-us.ahrq.gov/reports/statbriefs/sb58.pdf
 Stanton, M.W. and Rutherford, M.K. (2005) The high concentration of US health care expenditures. Agency for Healthcare Research and Quality, Rockville. Research in Action Issue 19. AHRQ Pub. No.06-0060.
 Bahadori, K., Doyle-Waters, M.M., Marra, C., Lynd, L., Alasaly, K., Swiston, J. and Fitz-Gerald, J.M. (2009) Economic burden of asthma: A systematic review. BMC Pulmonary Medicine, 9, 24. doi:10.1186/1471-2466-9-24
 Clement, L.T., Jones, C.A. and Cole, J. (2008) Health disparities in the United States: Childhood asthma. The American Journal of the Medical Sciences, 335, 260-265. doi:10.1097/MAJ.0b013e318169031c
 Probst, J.C., Moore, C.G., Glover, S.H. and Samuels, M.E. (2004) Person and place: the compounding effects of race/ethnicity and rurality on health. American Journal of Public Health, 10, 1695-1703. doi:10.2105/AJPH.94.10.1695
 Patel, M.R., Brown, R.W. and Clark, N.M. (2012) Perceived parent financial burden and asthma outcomes in low-income, urban children. Journal of Urban Health: Bulletin of the New York Academy of Medicine.
 Mehuys, E., Van Bortel, L., De Bolle, L., Van Tongelen, I., Annemas, L., Remon, J.P. and Brusselle, G. (2008) Effectiveness of pharmacist intervention for asthma control improvement. European Respiratory Journal, 31, 790-799. doi:10.1183/09031936.00112007
 Giraud, V., Allaert, F.A. and Roche, N. (2011) Inhaler technique and asthma: feasibility and acceptability of training by pharmacists. Respiratory Medicine, 105, 11815-11822. doi:10.1016/j.rmed.2011.07.004