TY - GEN AU - Obstbaum,S A TI - Should rates of cataract surgery vary by insurance status? SN - 0003-9950 PY - 1997///0821 KW - Aged KW - Aged, 80 and over KW - California KW - epidemiology KW - Cataract Extraction KW - economics KW - Centers for Medicare and Medicaid Services, U.S KW - Cross-Sectional Studies KW - Fee-for-Service Plans KW - Female KW - Health Maintenance Organizations KW - trends KW - Humans KW - Insurance Coverage KW - Male KW - Medicare Part B KW - Risk Factors KW - Sex Factors KW - United States N1 - Publication Type: Journal Article UR - https://doi.org/10.1001/archopht.1997.01100160087017 ER -