private void btnNew_Click(object sender, EventArgs e)
        {
            var form = new RefferrerForm()
            {
                MedicalForm = this
            };

            form.ShowDialog();
        }
        private void btnInfoReferrer_Click(object sender, EventArgs e)
        {
            if (cboReferrer.SelectedItem == null)
            {
                return;
            }
            var selectedItem = (KeyValuePair <int, string>)cboReferrer.SelectedItem;
            var key          = selectedItem.Key;
            var form         = new RefferrerForm()
            {
                MedicalForm = this,
                Referrer    = Refferrer.GetRefferrer(key)
            };

            form.ShowDialog();
        }