@article {Pierson:2008:0020-1324:1231,
	author = "Pierson, David J.",
	title = "Clinical Challenges in COPD",
	journal = "Respiratory Care",
	volume = "53",
	number = "9",
	year = "2008",
	abstract = "",
	pages = "1231-1232",
	url = "http://www.ingentaconnect.com/content/jrcc/rc/2008/00000053/00000009/art00015"
}