Formulary Changes in Chronic Obstructive Pulmonary Disease and the Association with COPD Exacerbations, Health Care Utilization and Costs: A Difference-in-Differences Analysis
AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE（2022）
关键词
chronic obstructive pulmonary disease,copd exacerbations,health care utilization,difference-in-differences
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