I. Burak Atalay, R. Ozturk, A. Yapar, M. Akif Simsek, E. Erturk Engin, and B. Safak Gungor, “Prevalence and predictive factors of anxiety, depression and death anxiety in patients over 50-years of age at the tertiary care cancer center ”, annalsmedres, vol. 26, no. 11, pp. 2635–2641, May 2021.