No abstract available
Publication types
-
Research Support, U.S. Gov't, P.H.S.
MeSH terms
-
Aged
-
Baltimore
-
Cataract Extraction / economics
-
Cataract Extraction / methods*
-
Data Collection / methods
-
Health Services Research / methods*
-
Humans
-
Medicare
-
Outcome and Process Assessment, Health Care*
-
Practice Patterns, Physicians'
-
Technology Assessment, Biomedical / methods
-
United States