1. Psychoneuroimmunology
2. American Lung Association. (2006a, August). Childhood asthma overview. Retrieved September 17, 2007, from www.lungusa.org/site/pp.asp?c=dvLUK9O0E&b=22782
3. American Lung Association. (2006b, October). Asthma medications for kids. Retrieved September 17, 2007, from www.lungusa.org/site/pp.asp?c=dvLUK9O0E&b=22883
4. General considerations for lung function testing
5. Standardisation of spirometry