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Continue to ChatCOVID-19’un zayıf halkası: Yaşlı nüfus - https://avesis.comu.edu.tr/yayin/b7562cf4-6e0d-4c32-8629-2e8b1679bcc7/covid-19un-zayif-halkasi-yasli-nufus
COVID-19’un zayıf halkası: Yaşlı nüfus - https://avesis.comu.edu.tr/yayin/b7562cf4-6e0d-4c32-8629-2e8b1679bcc7/covid-19un-zayif-halkasi-yasli-nufus