For medical researchers

Evidence-based research workflows for medical researchers

Analyze papers, build evidence-aware reviews, and identify suitable journals with structured AI-assisted workflows designed for clinical and biomedical research.

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Paper Analyzer

Turn a DOI, PMID, abstract, or paper into a structured review of study design, PICO, methods, bias, and clinical interpretation.

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Review Builder

Organize verified sources into an evidence-aware review workflow with clear claims, comparisons, and citation boundaries.

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Journal Matcher

Compare candidate journals by scope, study design, manuscript type, reporting expectations, and submission fit.

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Research principles

Designed for research judgment, not automated guesswork

Source-aware

Connect important claims to identifiable sources and make evidence boundaries visible.

Method-focused

Keep study design, estimands, bias, reporting, and clinical interpretation in view.

Researcher-controlled

AI assists the workflow; researchers verify evidence and own the final decision.

Analyze the evidence

Start with a DOI, PMID, abstract, or manuscript and identify the study design, PICO structure, methods, limitations, and clinical interpretation questions.

  • Structured paper analysis
  • Methodology and bias questions
  • Evidence boundaries made visible
Paper analysis workflow

Build the research narrative

Organize findings, compare studies, and connect claims with traceable references through a structured evidence-aware review workflow.

  • Thematic organization of findings
  • Evidence and citation boundaries
  • Comparison tables for study outcomes
Evidence-aware review workflow

Prepare for submission

Check reporting completeness, clarify methodological risks, and identify journals that fit your manuscript and study design.

  • Journal scope and article-type fit
  • Reporting and methods checklist
  • Optional pre-submission expert review
Pre-submission research workflow
Research method series

Causal inference and clinical trial design

A connected guide to causal methods, sequential decisions, and evidence generation for medical researchers.

Target trial emulation Regression discontinuity Instrumental variables Marginal structural models Group-sequential trials Bayesian adaptive trials Dynamic treatment regimes
Latest Insights

Scientific Methodology Blog

Ordinal Logistic Regression in Clinical Research: Modeling Ordered Outcomes Without Throwing Away Information

Ordinal Logistic Regression in Clinical Research: Modeling Ordered Outcomes Without Throwing Away Information

Learn how cumulative-logit models preserve ordered clinical outcomes, when proportional odds is defensible, and how to report category probabilities.

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Win Ratio in Clinical Trials: Designing Hierarchical Composite Endpoints Without Hiding Component Effects

Win Ratio in Clinical Trials: Designing Hierarchical Composite Endpoints Without Hiding Component Effects

Learn how hierarchical pairwise comparisons prioritize clinically important outcomes and why win difference, component drivers, and absolute measures matter.

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Bayesian Model Averaging in Clinical Research: Managing Model Uncertainty Beyond Stepwise Selection

Bayesian Model Averaging in Clinical Research: Managing Model Uncertainty Beyond Stepwise Selection

Learn how BMA combines plausible models to reduce overconfident variable-selection claims while preserving priors, diagnostics, calibration, and validation.

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Causal Forests in Clinical Research: Estimating Heterogeneous Treatment Effects Without Overclaiming Personalization

Causal Forests in Clinical Research: Estimating Heterogeneous Treatment Effects Without Overclaiming Personalization

Learn how causal forests estimate conditional treatment effects and why honesty, calibration, regression comparison, and external validation remain essential.

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Firth-Penalized Logistic Regression in Clinical Research: Rare Events, Separation, and Honest Risk Estimates

Firth-Penalized Logistic Regression in Clinical Research: Rare Events, Separation, and Honest Risk Estimates

Learn when Firth logistic regression helps with sparse binary outcomes and separation, and why calibration, validation, and researcher judgment still matter.

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Interrupted Time-Series Analysis in Clinical Research: Segmented Regression, Intervention Effects, and Credible Policy Evaluation

Interrupted Time-Series Analysis in Clinical Research: Segmented Regression, Intervention Effects, and Credible Policy Evaluation

Learn how ITS estimates level and slope changes while addressing autocorrelation, seasonality, concurrent events, controlled designs, and reporting boundaries.

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Targeted Maximum Likelihood Estimation in Clinical Research: Estimand-Aligned Causal Inference with Flexible Models

Targeted Maximum Likelihood Estimation in Clinical Research: Estimand-Aligned Causal Inference with Flexible Models

Learn how TMLE links estimands, outcome and treatment models, machine learning, cross-fitting, positivity diagnostics, uncertainty, and sensitivity analysis.

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Generalized Additive Models for Nonlinear Clinical Associations: Flexible Curves Without Losing Interpretability

Generalized Additive Models for Nonlinear Clinical Associations: Flexible Curves Without Losing Interpretability

Learn how GAMs model nonlinear clinical associations with smooth functions, effective degrees of freedom, uncertainty bands, diagnostics, and validated interpretation.

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Measurement Error in Clinical Epidemiology: Bias, Misclassification, and Correction Strategies

Measurement Error in Clinical Epidemiology: Bias, Misclassification, and Correction Strategies

Learn how measurement error affects exposures, outcomes, biomarkers, and prediction models, and how validation, calibration, SIMEX, and sensitivity analysis address it.

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Joint Models for Longitudinal and Time-to-Event Data: Linking Repeated Biomarkers to Clinical Outcomes

Joint Models for Longitudinal and Time-to-Event Data: Linking Repeated Biomarkers to Clinical Outcomes

Learn how joint models connect repeated biomarker trajectories with event risk through shared latent structure, informative dropout handling, and dynamic validation.

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Landmark Analysis in Clinical Research: Dynamic Prediction and Time-Varying Risk Sets

Landmark Analysis in Clinical Research: Dynamic Prediction and Time-Varying Risk Sets

Learn how landmark analysis defines future-risk populations, uses time-varying clinical information, avoids temporal leakage, and validates dynamic predictions.

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Negative Binomial Regression for Overdispersed Clinical Count Outcomes

Negative Binomial Regression for Overdispersed Clinical Count Outcomes

Learn how to model overdispersed clinical counts, use exposure-time offsets, assess excess zeros and clustering, and interpret incidence rate ratios responsibly.

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Restricted Cubic Splines in Clinical Research: Modeling Nonlinear Associations Without Arbitrary Categorization

Restricted Cubic Splines in Clinical Research: Modeling Nonlinear Associations Without Arbitrary Categorization

Learn how restricted cubic splines preserve continuous information, model nonlinear clinical associations, test curvature, and support interpretable, validated risk curves.

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AI Research Skills for Medical Researchers: From Literature Search to Manuscript Quality Control

AI Research Skills for Medical Researchers: From Literature Search to Manuscript Quality Control

Learn how research skills support literature searching, paper appraisal, statistical planning, evidence-driven writing, citation mapping, and manuscript quality control without replacing researcher judgment.

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Cluster-Randomized Trials: Understanding ICC, Design Effects, and Analysis

Cluster-Randomized Trials: Understanding ICC, Design Effects, and Analysis

Learn how intracluster correlation, design effects, cluster-size variation, and cluster-aware models shape power and valid inference in cluster-randomized trials.

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Covariate Adjustment in Randomized Clinical Trials: Precision Gains, Estimand Alignment, and Reporting

Covariate Adjustment in Randomized Clinical Trials: Precision Gains, Estimand Alignment, and Reporting

Learn when and how to adjust for baseline covariates in randomized trials, from ANCOVA to principled estimators, conditional versus marginal effects, and regulatory reporting.

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Multivariate Meta-Analysis: Jointly Modeling Correlated Outcomes for More Precise Evidence Synthesis

Multivariate Meta-Analysis: Jointly Modeling Correlated Outcomes for More Precise Evidence Synthesis

Learn how multivariate meta-analysis jointly models correlated outcomes, borrows strength across endpoints, handles missing outcomes, and supports valid joint inference.

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Publication Bias in Meta-Analysis: Detection, Quantification, and Adjustment

Publication Bias in Meta-Analysis: Detection, Quantification, and Adjustment

Learn how to detect, quantify, and adjust for publication bias using funnel plots, small-study-effect tests, trim-and-fill, selection models, and GRADE-based reporting.

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Trial Sequential Analysis: Controlling Random-Error Risk in Cumulative Meta-Analysis

Trial Sequential Analysis: Controlling Random-Error Risk in Cumulative Meta-Analysis

Learn how TSA applies sequential monitoring boundaries to cumulative meta-analysis, estimates required information size, and provides adjusted confidence intervals.

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Diagnostic Test Accuracy Meta-Analysis: Bivariate and HSROC Models

Diagnostic Test Accuracy Meta-Analysis: Bivariate and HSROC Models

Learn how to jointly model sensitivity and specificity, handle threshold effects, assess heterogeneity, and report QUADAS-2 and PRISMA-DTA results.

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Estimands for Intercurrent Events in Pragmatic Clinical Trials

Estimands for Intercurrent Events in Pragmatic Clinical Trials

Learn how treatment policy, hypothetical, composite, principal-stratum, and while-on-treatment strategies answer different real-world clinical questions.

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Bayesian Hierarchical Models for Treatment-Effect Heterogeneity

Bayesian Hierarchical Models for Treatment-Effect Heterogeneity in Multicenter Clinical Research

Learn how partial pooling estimates center-specific effects, stabilizes sparse subgroups, and quantifies heterogeneity without hiding uncertainty.

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N-of-1 Trials: Design, Analysis, and Reporting

N-of-1 Trials: Design, Analysis, and Reporting for Individualized Clinical Research

Learn how randomized crossover periods, washout, carryover assessment, and within-person analysis can support rigorous individualized treatment decisions.

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Clone-Censor-Weight Analysis in Target Trial Emulation

Clone-Censor-Weight Analysis in Target Trial Emulation

Learn how cloning, artificial censoring, and inverse probability of censoring weights emulate treatment-initiation strategies while addressing immortal-time and selection bias.

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Transporting Treatment Effects from Randomized Trials to Target Populations

Transporting Treatment Effects from Randomized Trials to Target Populations

Randomized trials estimate internally valid effects, but the target-population effect may differ. Learn how to define effect modifiers, assess positivity, and use standardization or sampling weights.

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Fairness and Subgroup Performance in Clinical Prediction Models

Fairness and Subgroup Performance in Clinical Prediction Models

One pooled AUC can conceal clinically important disparities. Learn how to assess subgroup calibration, discrimination, error rates, thresholds, and net benefit.

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Internal-External Cross-Validation for Clinical Prediction Models

Internal-External Cross-Validation for Clinical Prediction Models

Test model generalizability across hospitals, studies, regions, or time periods by leaving one meaningful cluster out at a time and quantifying heterogeneity.

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Clinical Prediction Model Updating and Recalibration

Clinical Prediction Model Updating: Recalibration, Revision, and Extension

External validation shows where a model fails; updating determines how to repair it. Learn when to use recalibration, revision, predictor extension, shrinkage, and independent validation.

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External Validation of Clinical Prediction Models

External Validation and Transportability of Clinical Prediction Models

A model that performs well in development data is not automatically transportable. Learn how to assess discrimination, calibration, clinical utility, recalibration, and external validity.

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Handling Missing Data in Clinical Trials

Handling Missing Data in Clinical Trials: Advanced Imputation and Sensitivity Analysis

Missing data analysis starts with the estimand. Learn MCAR, MAR, MNAR, multiple imputation, pattern-mixture models, delta adjustment, and sensitivity analysis for regulatory-grade trials.

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