Appendix 3. Comparison Drug- versus Non-Drug Studies per billion US$ health expenditure.
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https://figshare.com/articles/dataset/_Appendix_3_Comparison_Drug_versus_Non_Drug_Studies_per_billion_US_health_expenditure_/673001
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*Sparse data = 10 or less studies in either of the two groups.
Difference in ranks minor: 0 – 10; moderate10 – 20; large ≥ 20.
创建时间：
2013-03-14
