 For methodology, with  Principal component analysis technique, 22 variables in socioeconomic data related to the continuous use of opioid drugs was filtered, where the 'Relationship' Part deserves  highlight.
<fluency>  For methodology, with  Principal component analysis technique, 22 variables in socioeconomic data related to the continuous use of opioid drugs was filtered, where the 'Relationship' Part deserves  highlight.
 For methodology, with Principal component analysis technique, 22 variables in socioeconomic data related to the continuous use of Opioid drugs was filtered, where the 'Relationship' Part deserves highlight.