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Experimental and Therapeutic Medicine
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Print ISSN: 1792-0981 Online ISSN: 1792-1015
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February-2026 Volume 31 Issue 2

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Journals

International Journal of Molecular Medicine

International Journal of Molecular Medicine

International Journal of Molecular Medicine is an international journal devoted to molecular mechanisms of human disease.

International Journal of Oncology

International Journal of Oncology

International Journal of Oncology is an international journal devoted to oncology research and cancer treatment.

Molecular Medicine Reports

Molecular Medicine Reports

Covers molecular medicine topics such as pharmacology, pathology, genetics, neuroscience, infectious diseases, molecular cardiology, and molecular surgery.

Oncology Reports

Oncology Reports

Oncology Reports is an international journal devoted to fundamental and applied research in Oncology.

Experimental and Therapeutic Medicine

Experimental and Therapeutic Medicine

Experimental and Therapeutic Medicine is an international journal devoted to laboratory and clinical medicine.

Oncology Letters

Oncology Letters

Oncology Letters is an international journal devoted to Experimental and Clinical Oncology.

Biomedical Reports

Biomedical Reports

Explores a wide range of biological and medical fields, including pharmacology, genetics, microbiology, neuroscience, and molecular cardiology.

Molecular and Clinical Oncology

Molecular and Clinical Oncology

International journal addressing all aspects of oncology research, from tumorigenesis and oncogenes to chemotherapy and metastasis.

World Academy of Sciences Journal

World Academy of Sciences Journal

Multidisciplinary open-access journal spanning biochemistry, genetics, neuroscience, environmental health, and synthetic biology.

International Journal of Functional Nutrition

International Journal of Functional Nutrition

Open-access journal combining biochemistry, pharmacology, immunology, and genetics to advance health through functional nutrition.

International Journal of Epigenetics

International Journal of Epigenetics

Publishes open-access research on using epigenetics to advance understanding and treatment of human disease.

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Expression of Concern Open Access

[Expression of Concern] Randomized controlled trial comparing letrozole with laparoscopic ovarian drilling in women with clomiphene citrate‑resistant polycystic ovary syndrome

  • Authors:
    • Wei Liu
    • Shengnan Dong
    • Yumei Li
    • Lihong Shi
    • Wei Zhou
    • Yingling Liu
    • Jie Liu
    • Yazhong Ji

  • View Affiliations / Copyright

    Affiliations: Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, P.R. China, Department of Obstetrics and Gynecology, Central South University Affiliated to Xiang Ya Hospital of Reproductive Center, Changsha, Hunan 410008, P.R. China, Translational Center for Stem Cell Research, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, P.R. China
    Copyright: © Liu et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY 4.0].
  • Article Number: 29
    |
    Published online on: November 24, 2025
       https://doi.org/10.3892/etm.2025.13024
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Abstract

Following the publication of the above paper, a concern has been raised by an interested reader regarding the statistical handling of the P‑values shown in Tables I and II, such that there may be some doubt concerning adequate randomization of the study. The authors have been contacted by the Editorial Office to address the reader’s concern regarding the statistical analysis of certain of the data in this paper; in the meantime, we are issuing an Expression of Concern to notify readers of this potential problem, while the Editorial Office continues to investigate this matter further. [Experimental and Therapeutic Medicine 10: 1297‑1302, 2015; DOI: 10.3892/etm.2015.2690]

Exp Ther Med 10:[Related article:] 1297-1302, 2015; DOI: 10.3892/etm.2015.2690

Following the publication of the above paper, a concern has been raised by an interested reader regarding the statistical handling of the P-values shown in Tables I and II, such that there may be some doubt concerning adequate randomization of the study. The authors have been contacted by the Editorial Office to address the reader’s concern regarding the statistical analysis of certain of the data in this paper; in the meantime, we are issuing an Expression of Concern to notify readers of this potential problem, while the Editorial Office continues to investigate this matter further.

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Copy and paste a formatted citation
Spandidos Publications style
Liu W, Dong S, Li Y, Shi L, Zhou W, Liu Y, Liu J and Ji Y: [Expression of Concern] Randomized controlled trial comparing letrozole with laparoscopic ovarian drilling in women with clomiphene citrate‑resistant polycystic ovary syndrome. Exp Ther Med 31: 29, 2026.
APA
Liu, W., Dong, S., Li, Y., Shi, L., Zhou, W., Liu, Y. ... Ji, Y. (2026). [Expression of Concern] Randomized controlled trial comparing letrozole with laparoscopic ovarian drilling in women with clomiphene citrate‑resistant polycystic ovary syndrome. Experimental and Therapeutic Medicine, 31, 29. https://doi.org/10.3892/etm.2025.13024
MLA
Liu, W., Dong, S., Li, Y., Shi, L., Zhou, W., Liu, Y., Liu, J., Ji, Y."[Expression of Concern] Randomized controlled trial comparing letrozole with laparoscopic ovarian drilling in women with clomiphene citrate‑resistant polycystic ovary syndrome". Experimental and Therapeutic Medicine 31.2 (2026): 29.
Chicago
Liu, W., Dong, S., Li, Y., Shi, L., Zhou, W., Liu, Y., Liu, J., Ji, Y."[Expression of Concern] Randomized controlled trial comparing letrozole with laparoscopic ovarian drilling in women with clomiphene citrate‑resistant polycystic ovary syndrome". Experimental and Therapeutic Medicine 31, no. 2 (2026): 29. https://doi.org/10.3892/etm.2025.13024
Copy and paste a formatted citation
x
Spandidos Publications style
Liu W, Dong S, Li Y, Shi L, Zhou W, Liu Y, Liu J and Ji Y: [Expression of Concern] Randomized controlled trial comparing letrozole with laparoscopic ovarian drilling in women with clomiphene citrate‑resistant polycystic ovary syndrome. Exp Ther Med 31: 29, 2026.
APA
Liu, W., Dong, S., Li, Y., Shi, L., Zhou, W., Liu, Y. ... Ji, Y. (2026). [Expression of Concern] Randomized controlled trial comparing letrozole with laparoscopic ovarian drilling in women with clomiphene citrate‑resistant polycystic ovary syndrome. Experimental and Therapeutic Medicine, 31, 29. https://doi.org/10.3892/etm.2025.13024
MLA
Liu, W., Dong, S., Li, Y., Shi, L., Zhou, W., Liu, Y., Liu, J., Ji, Y."[Expression of Concern] Randomized controlled trial comparing letrozole with laparoscopic ovarian drilling in women with clomiphene citrate‑resistant polycystic ovary syndrome". Experimental and Therapeutic Medicine 31.2 (2026): 29.
Chicago
Liu, W., Dong, S., Li, Y., Shi, L., Zhou, W., Liu, Y., Liu, J., Ji, Y."[Expression of Concern] Randomized controlled trial comparing letrozole with laparoscopic ovarian drilling in women with clomiphene citrate‑resistant polycystic ovary syndrome". Experimental and Therapeutic Medicine 31, no. 2 (2026): 29. https://doi.org/10.3892/etm.2025.13024
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