@inbook{inbook, title = {{Background to Sample Size Calculations}}, publisher = {{Chapman and Hall/CRC}}, url = {{}}, year = {{2021}}, month = {{7}}, author = {{Rothwell J and Cooper C and Julious S and Campbell M}}, doi = {{10.1201/9781315119694-12}}, pages = {{243-274}}, note = {{Accessed on 2024/12/22}}}