| Keywords: |
aged; mortality; note; united states; outcome assessment; statistics; editorial; information processing; outcome assessment (health care); risk; postoperative complication; postoperative complications; health care quality; hospital care; quality indicators, health care; health insurance; health service; medicare; data collection; surgery; gastrectomy; surgical procedures, operative; multivariate analysis; health care delivery; socioeconomics; socioeconomic factors; health care disparity; hospital mortality; poverty; health services accessibility; healthcare disparities
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