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This is to certify that your paper entitled «Vagifem is superior to vaginal Premarin in induction of endometrial thickness in the frozen-thawed cycle patients with refractory endometria: A randomized clinical trial» was indexed with 6 pages, in the CIVILICA citation database, code COI:JR_IJRM-12-6_007, after evaluation and approval of the referees of the "International Journal of Reproductive BioMedicine Vol 12, Issue 6 , Year 2016.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above journal and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.