//Shows list of patients to delete
 private void Delete_Existing_Dropdown_DropDown(object sender, EventArgs e)
 {
     Reffering_GP_Database.PopulateRefferingGPDropdown(Delete_Existing_Dropdown);
 }
 //When dropdown occurs a list of GPS from the Reffering GP Table will populate
 //Reffering_GP_Dropdown
 private void Dropdown_2_DropDown(object sender, EventArgs e)
 {
     Reffering_GP_Database.PopulateRefferingGPDropdown(Dropdown_3);
 }