D. Youssef Wazqar and N. U. Abu Al-Saud, “Effect of interventional follow-up phone calls on health-related quality of life in adult patients with heart failure in Saudi Arabia: a pilot study”, Piel21w, vol. 22, no. 1(82), pp. 20–25, Apr. 2023, doi: 10.2478/pielxxiw-2023-0008.