Sathian, B., Sreedharan, J., Baboo, S. N., Sharan, K., Abhilash, E. S., & Rajesh, E. (2010). Relevance of Sample Size Determination in Medical Research. Nepal Journal of Epidemiology, 1(1), 4–10. https://doi.org/10.3126/nje.v1i1.4100