{Reference Type}: Journal Article {Title}: Sample size calculation in clinical research. {Author}: Ranganathan P;Deo V;Pramesh CS; {Journal}: Perspect Clin Res {Volume}: 15 {Issue}: 3 {Year}: 2024 Jul-Sep 暂无{DOI}: 10.4103/picr.picr_100_24 {Abstract}: Calculation of sample size is an essential part of research study design since it affects the reliability and feasibility of the research study. In this article, we look at the principles of sample size calculation for different types of research studies.