private void tableLayoutPanel3_Click(object sender, EventArgs e)
        {
            var form = new NewPatient {
                PatientListForm = this, TopLevel = false, Dock = DockStyle.Fill
            };

            CatelogForm.pnlFill.Controls.Clear();
            CatelogForm.pnlFill.Controls.Add(form);
            form.Show();
        }
        private void btnCreateNew_Click(object sender, EventArgs e)
        {
            var form = new NewPatient {
                MedicalForm = this, TopLevel = false, Dock = DockStyle.Fill, PatientListForm = null
            };

            CatelogForm.pnlFill.Controls.Clear();
            CatelogForm.pnlFill.Controls.Add(form);
            form.Show();
        }