DOI: 10.1055/s-00028832

Arquivos Brasileiros de Neurocirurgia: Brazilian Neurosurgery


Shekelle PG, Newberry SJ, Wu H , et al.
Identifying Signals for Updating Systematic Reviews.: A Comparison of Two Methods.
Methods Research Report. AHRQ Publication No. 11–EHC042-EF. Rockville, MD: Agency for Healthcare Research and Quality; June 2011.

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