public function getDisorderSectionComments($disorder_section_id, $element_id)
{
$criteria = new \CDbCriteria();
$criteria->select = 'comments';
$criteria->condition = "element_id=:element_id";
$criteria->addCondition("ophcocvi_clinicinfo_disorder_section_id=:disorder_section_id");
$criteria->params = array(':element_id' => $element_id, ':disorder_section_id' => $disorder_section_id);
$item = Element_OphCoCvi_ClinicalInfo_Disorder_Section_Comments::model()->find($criteria);
return $item['comments'] ? $item['comments'] : '';
}