RETRACTED ARTICLE: Correlation between uterine artery Doppler indices and menstrual irregularities among levonorgestrel releasing intrauterine system and depot medroxyprogesterone acetate users: a prospective observational study

Abstract

We, the Editors and Publisher of The European Journal of Contraception & Reproductive Health Care, have retracted the following article:

Mohamed Rezk, Alaa Al-Halaby, Mohamed Emarh & Mohamed Shawky (2017) Correlation between uterine artery Doppler indices and menstrual irregularities among levonorgestrel releasing intrauterine system and depot medroxyprogesterone acetate users: a prospective observational study, The European Journal of Contraception & Reproductive Health Care, 22:4, 316–320, DOI: 10.1080/13625187.2017.1351533

Since publication, significant concerns have been raised about the integrity of the data and reported results in the article. When approached for an explanation, the authors have been unable to address the concerns raised and have not been able to provide their original data or sufficient supporting information. As verifying the validity of published work is core to the integrity of the scholarly record, we are therefore retracting the article. The corresponding author listed in this publication has been informed. The authors do not agree with the retraction.

We have been informed in our decision-making by our policy on publishing ethics and integrity and the COPE guidelines on retractions.

The retracted article will remain online to maintain the scholarly record, but it will be digitally watermarked on each page as ‘Retracted’.

View retraction statement:

Statement of Retraction: “Correlation between uterine artery Doppler indices and menstrual irregularities among levonorgestrel releasing intrauterine system and depot medroxyprogesterone acetate users: a prospective observational study”