Chowdhury, Mohammad Z. I., Khokan C. Sikdar, and Tanvir C. Turin. “Sample Size Calculation in Clinical Studies: Some Common Scenarios”. International Journal of Statistics in Medical Research 6, no. 4 (December 8, 2017): 152–161. Accessed March 28, 2024. https://www.lifescienceglobal.com/pms/index.php/ijsmr/article/view/5077.