TY - JOUR T1 - Grading the quality of evidence in complex interventions: a guide for evidence-based practitioners JF - Evidence Based Medicine JO - Evid Based Med SP - 20 LP - 22 DO - 10.1136/ebmed-2016-110577 VL - 22 IS - 1 AU - M Hassan Murad AU - Jehad Almasri AU - Mouaz Alsawas AU - Wigdan Farah Y1 - 2017/03/01 UR - http://ebm.bmj.com/content/22/1/20.abstract N2 - ER -