RT Journal Article SR Electronic T1 Mixed kinds of evidence: synthesis designs and critical appraisal for systematic mixed studies reviews including qualitative, quantitative and mixed methods studies JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 79 OP 79 DO 10.1136/ebmed-2014-110158 VO 20 IS 2 A1 Pluye, Pierre YR 2015 UL http://ebm.bmj.com/content/20/2/79.abstract AB