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Supplementary Appendix includes the followings: Appendix 1. The search strategy for Embase; Appendix 2. Description for Stata 13.0; Appendix 3. Assessment of Inconsistency results; Appendix 4. Tests for Publication Bias; Appendix 5. Others Information.
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 0 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
| views | 4 | |
| downloads | 29 |

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