public function getAddressBlock()
    {
        if (! $this instanceof Model) {
            throw new EloquentModelNotFoundException();
        }

        $fields = $this->addressBlockFields();

        $output = [];

        if (! empty($fields)) {
            foreach($fields as $field) {
                $fieldValue = $this->getAddressFieldValue($field);

                if (! empty($fieldValue)) {
                    $output[] = $fieldValue;
                }
            }
        }

        return implode('<br>', $output);
    }