I am doing a systematic review and meta-analysis on immunotherapy. Some non-English articles (articles in Chinese, french and Spanish) are included in my search results.
As I am not familiar with these languages, I faced a problem with extraction of data from these articles.
Does anybody have any advise on how to extract data from these articles?
Is there any free translation services for these languages?
Unfortunately, online translators like Google translate does not provide an accurate result considering these articles include medical terms.