It is possible, I've used it in my article.

I suggest to read its use through its official website.

Best regards,

Priastana

http://methods.cochrane.org/bias/assessing-risk-bias-included-studies

Conference Paper A Systematic Review on The Effectiveness of Auricular Acupre...

ROBERTSON, C. et al. Practicalities of using a modified version of the Cochrane Collaboration risk of bias tool for randomised and non- randomised study designs applied in a health technology assessment setting. n. September 2013, 2014.

Dear Priastana and Glayson

Thank you all for your valuable answers

Thank you all -good information regarding meta analysis