private void yesBtn_Click(object sender, RoutedEventArgs e)
        {
            if (patient != null)
            {
                examinationController.DeletePatientExaminations(patient.Jmbg);
                patientCardController.DeletePatientCard(patient.Jmbg);
                userController.DeleteProfile(patient.Jmbg);
                therapyController.DeletePatientTherapies(patient.Jmbg);
                placementInSickRoomController.DeletePatientPlacements(patient.Jmbg);

                foreach (Window window in Application.Current.Windows)
                {
                    if (window.GetType() == typeof(MainWindow))
                    {
                        (window as MainWindow).Main.Content = new PatientView();
                    }
                }
                this.Close();
            }
        }