title: RETRACTED: Oral dydrogesterone treatment during early pregnancy to prevent recurrent pregnancy loss and its role in modulation of cytokine production: a double-blind, randomized, parallel, placebo-controlled trial.
abstract: This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal).
  
  This article has been retracted at the request of the ASRM Publications Committee. The Committee reviewed concerns related to the accuracy of data reported in Table 2 and the authors acknowledged significant errors that could not be corrected because they were unable to provide the original data. As the Committee cannot vouch for the accuracy of the data, we have issued a retraction of this article.
authors.affiliation: Department of Obstetrics & Gynecology, Maulana Azad Medical College & Lok Nayak Hospital, New Delhi, India. Electronic address: ashkumar@eth.net.
authors.forename: Ashok
authors.initials: A
authors.lastname: Kumar
authors.affiliation: Department of Obstetrics & Gynecology, Maulana Azad Medical College & Lok Nayak Hospital, New Delhi, India.
authors.forename: Nargis
authors.initials: N
authors.lastname: Begum
authors.affiliation: Department of Obstetrics & Gynecology, Maulana Azad Medical College & Lok Nayak Hospital, New Delhi, India.
authors.forename: Sudha
authors.initials: S
authors.lastname: Prasad
authors.affiliation: Department of Biochemistry, Maulana Azad Medical College, New Delhi, India.
authors.forename: Sarita
authors.initials: S
authors.lastname: Aggarwal
authors.affiliation: Institute of Cytology and Preventive Oncology, Noida, India.
authors.forename: Shashi
authors.initials: S
authors.lastname: Sharma
mesh_terms: D000026:Abortion, Habitual / Q000453:epidemiology / Q000276:immunology* / Q000517:prevention & control*; D000284:Administration, Oral; D000328:Adult; D016207:Cytokines / Q000276:immunology*; D004311:Double-Blind Method; D004394:Dydrogesterone / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D007194:India / Q000453:epidemiology; D015990:Placebo Effect; D011247:Pregnancy; D015995:Prevalence; D011372:Progestins / Q000008:administration & dosage; D012307:Risk Factors; D058408:Th1-Th2 Balance; D016896:Treatment Outcome
chemical_list: D016207:Cytokines; D011372:Progestins; D004394:Dydrogesterone
keywords: Recurrent pregnancy loss; Th1 cytokines; Th2 cytokines; dydrogesterone; pregnancy outcome