1. A review of the Medicare economic index: An analysis of variations in practice costs among specialties;Berry,1981
2. The substitution bias of the Laspeyres price index;Braithwaite;American Economic Review,1980
3. Medicare physicians' services: The composition of spending and assignment rates;Burney;Health Care Financing Review,1985
4. Do regional wages differ?;Carlino;Federal Reserve Bank of Philadelphia Business Review,1986