In the sentence extracted from biomedical literature, identify all the chemical entities. The required answer format is the same sentence with HTML <span> tags to mark up specific entities. 
### Entity Markup Guides:
Use <span class="chemical"> to denote a chemical.

### Input Text: Co - morbid major depressive disorder ( OR = 7 . 18 , 95 CI = 2 . 612 - 19 . 708 ) , bipolar disorder ( OR = 13 . 807 , 95 CI = 5 . 194 - 36 . 706 ) , antisocial personality disorder ( OR = 12 . 619 , 95 CI = 6 . 702 - 23 . 759 ) and heavy methamphetamine uses were significantly associated with lifetime methamphetamine - induced psychosis after adjusted for other factors .
### Output Text:
Co - morbid major depressive disorder ( OR = 7 . 18 , 95 CI = 2 . 612 - 19 . 708 ) , bipolar disorder ( OR = 13 . 807 , 95 CI = 5 . 194 - 36 . 706 ) , antisocial personality disorder ( OR = 12 . 619 , 95 CI = 6 . 702 - 23 . 759 ) and heavy <span class="chemical">methamphetamine</span> uses were significantly associated with lifetime <span class="chemical">methamphetamine</span> - induced psychosis after adjusted for other factors . 