4Ina Kay Ford Daniel H Ginsburg. 2001. A chapter in medical care output and productivity[R]. 203-220 from National Bureau of Economic Research, Inc.
5Cutler, David M, Mark B McClellan, et al. Pricing heart attack treatments[R]. Paper given at the NBER-CRIW Conference on medical care output and productivity, Bethesda MD, 1998, June 12-13.
6Elaine M Cardenas. Revision of the CPI hospital services compo- nent[J]. Monthly Labor Review December, 1996,.
7Chapter 17, The consumer price index [ Z]. BLS Handbook of Methods Updated 06/2007.
8Crawford M, Church J. CPI Detailed Report Data for August 2013:20.