In the article entitled, “Sample size estimation and power analysis for clinical research studies,” which was published in pages 7-13, Issue 1, Vol. 5 of Journal of Human Reproductive Sciences,[1] sections in the text have been directly copied from a previously published article, entitled, “Issues in outcomes research: An overview of randomization techniques for clinical trials,” in pages 215-221, Issue 2, Vol. 45 of Journal of Athletic Training.[2] Thus owing to duplicity of text, the article is being retracted.
Dr. Madhuri Patil
Editor in Chief
Journal of Human Reproductive Sciences
REFERENCES
- 1.Suresh KP, Chandrashekara S. Sample size estimation and power analysis for clinical research studies. J Hum Reprod Sci. 2012;5:7–13. doi: 10.4103/0974-1208.97779. [DOI] [PMC free article] [PubMed] [Google Scholar] [Retracted]
- 2.Kang M, Ragan BG, Park JH. Issues in outcomes research: An overview of randomization techniques for clinical trials. J Athl Train. 2008;43:215–21. doi: 10.4085/1062-6050-43.2.215. [DOI] [PMC free article] [PubMed] [Google Scholar]