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Telegram-канал usern_congress - USERN Congress

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🌐 Universal Scientific Education and Research Network (USERN) ✅ Get more information about the following USERN Congress 📍 Istanbul, Turkey 🌐 userncongress.tums.ac.ir 📧 Usern.congress@gmail.com 👤 @USERN_Congress2021 @usern_congress @usern_net