RT Journal Article SR Electronic T1 Rating the certainty in evidence in the absence of a single estimate of effect JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP ebmed-2017-110668 DO 10.1136/ebmed-2017-110668 A1 M Hassan Murad A1 Reem A Mustafa A1 Holger J Schünemann A1 Shahnaz Sultan A1 Nancy Santesso YR 2017 UL http://ebm.bmj.com/content/early/2017/03/20/ebmed-2017-110668.abstract AB