@book{297936,
	author = {Dosman, James a. and Cockcroft, Donald W.},
	title = {Obstructive lung diseases, part I : chronic obtructive pulmonary disease / editores James A. Dosman,  Donald W. Cockcroft},
	publisher = {W.b.saunders Co.},
	year = {1996},
	address = {Philadelphia}
}