RT Journal Article SR Electronic T1 Inclusion and exclusion criteria and the problem of describing homogeneity of study populations in clinical trials JF BMJ Evidence-Based Medicine JO BMJ EBM FD BMJ Publishing Group Ltd SP 92 OP 94 DO 10.1136/bmjebm-2018-111115 VO 24 IS 3 A1 Franz Porzsolt A1 Felicitas Wiedemann A1 Susanne Isabel Becker A1 C J Rhoads YR 2019 UL http://ebm.bmj.com/content/24/3/92.abstract AB