Gray literature in systematic reviews on population health in the Middle East and North Africa: protocol of an overview of systematic reviews and evidence mapping.

Karima ChaabnaSohaila CheemaAmit AbrahamHekmat AlrouhRavinder MamtaniJavaid I Sheikh

Published in: Systematic reviews (2018)

The systematic review protocol was registered with the International Prospective Register of Systematic Reviews (PROSPERO) on 26 October 2018 (registration number CRD42017076736 (Syst Rev 2:4, 2013).

Keyphrases

systematic review
meta analyses
randomized controlled trial
high resolution
high density