Articles that support this problem:
Up-to-dateness of reviews is often neglected in overviews: a systematic review
2014 : Journal of clinical epidemiology
Systematic reviews with published protocols compared to those without: more effort, older search
2018 : Journal of clinical epidemiology
Is the information of systematic reviews published in nursing journals up-to-date? a cross-sectional study
2017 : Bmc medical research methodology
Are systematic reviews up-to-date at the time of publication?
2013 : Systematic reviews
A Cochrane review on brain [18F]FDG PET in dementia: limitations and future perspectives
2015 : European journal of nuclear medicine & molecular imaging
The currency, completeness and quality of systematic reviews of acute management of moderate to severe traumatic brain injury: A comprehensive evidence map
2018 : Plos one [electronic resource]