TY - GEN AU - Vera-Hernández,A M TI - Duplicate coverage and demand for health care. The case of Catalonia SN - 1057-9230 PY - 1999///1222 KW - Health Services Needs and Demand KW - statistics & numerical data KW - Humans KW - Insurance Coverage KW - Insurance Selection Bias KW - Insurance, Health KW - Medicine KW - Models, Econometric KW - National Health Programs KW - Office Visits KW - Private Sector KW - Public Sector KW - Spain KW - Specialization N1 - Publication Type: Journal Article UR - https://doi.org/10.1002/(sici)1099-1050(199911)8:7<579::aid-hec478>3.0.co;2-p ER -