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: Efficacy was evaluated using the Clinical Global Impression - Sexual Function ( CGI - SF ; the primary outcome measure ) , the International Index of Erectile Function ( IIEF ) , Arizona Sexual Experience Scale ( ASEX ) , and Erectile Dysfunction Inventory of Treatment Satisfaction ( EDITS ) ( secondary outcome measures ) .
### Output Text:
Efficacy was evaluated using the Clinical Global Impression - Sexual Function ( CGI - SF ; the primary outcome measure ) , the International Index of Erectile Function ( IIEF ) , Arizona Sexual Experience Scale ( ASEX ) , and Erectile Dysfunction Inventory of Treatment Satisfaction ( EDITS ) ( secondary outcome measures ) . 