1. Phosphodiesterase 5 inhibitors for pulmonary hypertension;Barnes;Cochrane Database of Systematic Reviews,2019
2. Differential dropout and bias in randomised controlled trials: when it matters and when it may not;Bell;BMJ,2013
3. Sex and gender in pulmonary arterial hypertension;Cheron;European Respiratory Review,2021
4. Cumpston M Lasserson T Chandler J Page MJ Chapter III: Reporting the review. In: Higgins JP, Thomas J, Chandler J, Cumpston M, Li T, Page MJ, Welch VA (editors). Cochrane Handbook for Systematic Reviews of Interventions Version 6.3 (updated February 2022). Cochrane, 2022 Available from training.cochrane.org/handbook/archive/v6.3
5. Influence of trial sample size on treatment effect estimates: meta-epidemiological study;Dechartres;BMJ,2013