OpenEpi:Sample Size for X-Sectional,Cohort,and Clinical Trials
A Meta-Research of Randomized Controlled Trials in the Field of Mental Health: Comparing Pharmacological to Non-Pharmacological Interventions from 1955 to 2020 - Sheng Chen, Alina Lee, Wei Wang, 2023
Sample size calculations for randomized clinical trials published in anesthesiology journals: a comparison of 2010 versus 2016 | Canadian Journal of Anesthesia/Journal canadien d'anesthésie
Sample Size Calculation in Clinical Trials (09.08.2010)
Pitfalls in reporting sample size calculation in randomized controlled trials published in leading anaesthesia journals: a systematic review - British Journal of Anaesthesia
How to calculate sample size in randomized controlled trial? - Abstract - Europe PMC
A practical approach to sample size calculation for fixed populations - ScienceDirect