Systematic Review Writing Service: Protocol to Publication-Ready Manuscript

ScribeLabWriter's full writing service handles every stage of this pipeline. Your review is led by a PhD methodologist who follows the Cochrane Handbook for Systematic Reviews of Interventions (version 6.5, 2024) and reports all findings per PRISMA 2020 (Page et al., BMJ, 2021). You retain full authorship. We provide the methodological execution.

The average systematic review takes 67.3 weeks to complete in-house (Borah et al., BMJ Open, 2017) and costs approximately $141,194 when researcher labor is fully accounted for (Michelson and Reuter, Contemporary Clinical Trials Communications, 2019). Our delivery timeline is 1 to 10 weeks depending on scope and tier.

For UK-based researchers, see our systematic review support for UK researchers. For industry-funded evidence, see our pharmaceutical and regulatory and HTA and market access services.

Protocol Development and PROSPERO Registration

We develop a PRISMA-P compliant protocol (Moher, Shamseer, Clarke, et al., Systematic Reviews, 2015) defining your PICO or PECO question, eligibility criteria, search strategy, screening procedures, data extraction plan, risk of bias tool selection, and synthesis approach. We prepare every PROSPERO registration field for submission. Most journals now expect a PROSPERO ID at manuscript submission, and retrospective registration is flagged on the record.

Learn more about Protocol and PROSPERO Registration

Multi-Database Search Strategy

We build reproducible search strategies across a minimum of three databases with Boolean operators, MeSH and Emtree subject headings, and database-specific syntax translation. Every strategy is built to PRESS standards (McGowan et al., Journal of Clinical Epidemiology, 2016) and reported per PRISMA-S (Rethlefsen et al., Systematic Reviews, 2021). We commonly search PubMed/MEDLINE, Embase, Cochrane CENTRAL, CINAHL Complete, Scopus, Web of Science, and PsycINFO. Grey literature sources are included when your protocol requires them.

Learn more about Search Strategy Development

Dual-Reviewer Screening

Title and abstract screening is conducted by two independent reviewers using predefined inclusion and exclusion criteria. Full-text screening follows with documented exclusion reasons coded to eligibility criteria. Inter-rater agreement is calculated and reported (Cohen's kappa). All screening is managed in Covidence, Rayyan, or a comparable platform with a full audit trail. This is not a box-ticking exercise. Dual-reviewer screening with documented agreement is a Cochrane requirement and one of the most common reasons reviews are rated critically low quality on AMSTAR 2 when it is missing.

Standardized Data Extraction

Data extraction uses a pre-piloted, standardized extraction form. We extract study characteristics, population details, intervention or exposure variables, comparators, outcomes, effect sizes, and any additional fields required for your synthesis. Extraction is checked for accuracy and completeness before synthesis begins.

Risk of Bias Assessment

Risk of bias is assessed by two reviewers using the validated tool appropriate to your study designs:

Risk of bias findings are reported in structured tables and traffic-light plots (generated using robvis) formatted for journal submission.

Evidence Synthesis

We synthesize findings using narrative synthesis for heterogeneous data or quantitative meta-analysis when pooling is appropriate. For meta-analysis, we calculate pooled effect sizes using REML estimation (the Cochrane-recommended default), generate forest plots and funnel plots, test for publication bias (Egger's test, trim-and-fill), conduct subgroup and sensitivity analyses, and produce GRADE Summary of Findings tables in GRADEpro GDT. All statistical analyses are delivered with reproducible R (metafor, meta) or Stata code.

If you need meta-analysis as a standalone service (without the full review), see our Meta-Analysis Service.

PRISMA 2020 Manuscript

We write the complete manuscript (Introduction, Methods, Results, Discussion) following PRISMA 2020 reporting guidelines and format it to your target journal's author specifications. The deliverable includes the manuscript, a PRISMA 2020 flow diagram (four-phase, 2020 version), a completed PRISMA 2020 checklist with page and section references, and all supporting documentation.

Every full systematic review project includes:

• PROSPERO-ready or PROSPERO-registered protocol (PRISMA-P compliant)
• Reproducible search strategy with database-specific syntax for every searched database
• PRISMA 2020 flow diagram (four-phase, 2020 version)
• PRISMA 2020 checklist with page and section references
• Dual-reviewer screening logs with documented inter-rater agreement (Cohen's kappa)
• Full-text exclusion log with reasons coded to eligibility criteria
• Standardized data extraction tables
• Risk of bias assessment tables using the validated tool for your study designs
• Risk of bias traffic-light and summary plots (robvis)
• GRADE Summary of Findings table (where applicable, produced in GRADEpro GDT)
• Publication-ready manuscript (IMRAD) formatted to your target journal's author guidelines
• Forest plots, funnel plots, and subgroup analysis figures (if meta-analysis is included)
• Reproducible R or Stata code with inline annotations (if meta-analysis is included)
• Complete reference library in your preferred format (EndNote, Zotero, Mendeley)
• Unlimited revisions until your supervisor, committee, or target journal is satisfied

The timeline depends on the number of databases searched, the expected volume of retrieved records, the number of included studies, and whether meta-analysis is part of the scope. We provide a specific timeline estimate in your quote based on your project details.

We match you with a PhD methodologist whose academic background aligns with your field:

Health sciences and clinical medicine, nursing and evidence-based practice, psychology and behavioral science, public health and epidemiology, nutrition and dietetics, physiotherapy and rehabilitation, social work and social policy, education and pedagogy, pharmacology and pharmaceutical sciences, environmental and occupational health.

If your field is not listed, include it in your enquiry. We will confirm whether we have a specialist available for your discipline.

PhD and doctoral students writing a systematic review as a thesis chapter or a standalone publication requirement. Your committee expects Cochrane-level methodology, but you are managing coursework, teaching, and data collection simultaneously.

Clinical researchers and medical residents who need a systematic review for a journal submission, a clinical guideline update, or a first-author publication. Your clinical schedule does not allow 67 weeks of full-time review work.

Grant applicants who need a preliminary evidence synthesis to establish the research gap and demonstrate methodological competence in a funding application.

Research teams on deadlines who have started a systematic review but need professional support to complete it within a journal or grant deadline.

International researchers submitting to English-language journals who need native-English writing with full methodological support.