<style face="normal" font="default" size="100%">Determinants of health care costs in the senior elderly: age, comorbidity, impairment, or proximity to death?</style>

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31<style face="normal" font="default" size="100%">Determinants of health care costs in the senior elderly: age, comorbidity, impairment, or proximity to death?</style><style face="normal" font="default" size="100%">Determinants of health care costs in the senior elderly: age, comorbidity, impairment, or proximity to death?</style>