Livoa LogoLivoa
Randomised assignment
Deviations from the intended intervention
Missing outcome data
Measurement of the outcome
Selection of the reported result
Overall risk of bias

Balk (2009)

Cheng (2017)

Deng (2013)

Du (2021)

Li (2020)

Li (2023)

Enojiv (2019)

Molassiotis (2012)

Molassiotis (2013)

Smith (2013)

Molassiotis (2007)

Lu (2012)

Deng (2018)

Hou (2017)

Mao (2014)

Low Concern
Some Concern
High Concern

tabelle

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