Kreačić, Miroslav, Tamara Ursulović, and Dušica Gavrilović. 2021. “Comorbidity As a Factor of Prognosis in Patients With Locoregionally Advanced, Inoperable Squamocellular Head and Neck Cancers”. Vojnosanitetski Pregled 77 (2). https://doi.org/10.2298/VSP180315062K.