$d = $date_parser->parse(date => $dob);

					};

					if($d) {

						if($d = @{$d}[0]) {

							$d = $dfn->parse_datetime($d->{'canonical'});

							if(($d == $birth_dt) || ($d == ($birth_dt - $oneday)) || ($d == ($birth_dt + $oneday))) {

								push @person_twins, $s;

								$twins{$person->{'xref'}} = $s->{'xref'};

							}

						}

					}