Presented to

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This is to certify that your paper entitled «Evaluation of the relationship between maternal blood groups and adverse pregnancy complications in women referred to the maternity ward of Ali Ebn –e Abi Taleb Hospital from April ۲۰۱۷ to April ۲۰۱۹» was indexed with 13 pages, in the CIVILICA citation database, code COI:WMCONF04_039, after evaluation and approval of the referees of the "Fourth International Conference on Women, Obstetrics, Infertility and Mental Health 2021.

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 conference 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.