@book{597570,
	author = {Newhouse, Joseph P. and Rand Corporation. and World Congress on Health Economics.},
	title = {The demand for medical care services :},
	publisher = {RAND,},
	year = {1981.},
	address = {Santa Monica, CA :},
	note = {"March 1981."},
	url = {http://www.rand.org/publications/R/R2691/}
}