@book{16759,
	author = {Guyatt, Gordon},
	title = {Users' guides to the medical literature},
	publisher = {McGraw-Hill Medical,},
	year = {c2008},
	series = {McGraw-Hill professional},
	address = {New York :},
	edition = {2nd ed.},
	note = {Title from PDF title page (viewed Sept. 9, 2008)},
	url = {http://www.netlibrary.com.libraryumpsa.idm.oclc.org/urlapi.asp?action=summary&v=1&bookid=235095}
}