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This is to certify that your paper entitled «Design and Clinical Evaluation of a Womb Sound Simulator Device for Reducing Stress in Preterm Infants in the Neonatal Intensive Care Unit (NICU)» was indexed with 6 pages, in the CIVILICA citation database, code COI:HSEBCNF09_039, after evaluation and approval of the referees of the "Ninth International Conference on Safety and Health held in Tehran 2025.

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.