TY - JOUR AU - Mueller, Monika AU - D’Addario, Maddalena AU - Egger, Matthias AU - Cevallos, Myriam AU - Dekkers, Olaf AU - Mugglin, Catrina AU - Scott, Pippa PY - 2018 DA - 2018/05/21 TI - Methods to systematically review and meta-analyse observational studies: a systematic scoping review of recommendations JO - BMC Medical Research Methodology SP - 44 VL - 18 IS - 1 AB - Systematic reviews and meta-analyses of observational studies are frequently performed, but no widely accepted guidance is available at present. We performed a systematic scoping review of published methodological recommendations on how to systematically review and meta-analyse observational studies. SN - 1471-2288 UR - https://doi.org/10.1186/s12874-018-0495-9 DO - 10.1186/s12874-018-0495-9 ID - Mueller2018 ER -