An audit of sample sizes for pilot and feasibility trials being undertaken in the United Kingdom registered in the United Kingdom Clinical Research Network database

Outcome Reporting Among Drug Trials Registered in ClinicalTrials.gov

(2013) Florence T. Bourgeois   ANNALS OF INTERNAL MEDICINE

Recommendations for Planning Pilot Studies in Clinical and Translational Research

(2011) Charity G. Moore et al.   CTS-Clinical and Translational Science

The size of a pilot study for a clinical trial should be calculated in relation to considerations of precision and efficiency

(2011) Julius Sim et al.   JOURNAL OF CLINICAL EPIDEMIOLOGY

Optimal sample sizes for phase II clinical trials and pilot studies

(2011) Nigel Stallard   STATISTICS IN MEDICINE

What is a pilot or feasibility study? A review of current practice and editorial policy

(2010) Mubashir Arain et al.   BMC Medical Research Methodology

A tutorial on pilot studies: the what, why and how

(2010) Lehana Thabane et al.   BMC Medical Research Methodology

Considerations in determining sample size for pilot studies

(2008) Melody A. Hertzog   RESEARCH IN NURSING & HEALTH