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: METHODS : The Assessment of Lisinopril and Survival study was a multicenter , randomized , double - blind trial in which patients with or without previous ACE inhibitor treatment were stabilized receiving medium - dose lisinopril ( 12 . 5 or 15 . 0 mg once daily [ OD ] ) for 2 to 4 weeks and then randomized to high - ( 35 . 0 or 32 . 5 mg OD ) or low - dose ( 5 . 0 or 2 . 5 mg OD ) groups .
### Output Text:
METHODS : The Assessment of <span class="chemical">Lisinopril</span> and Survival study was a multicenter , randomized , double - blind trial in which patients with or without previous <span class="chemical">ACE inhibitor</span> treatment were stabilized receiving medium - dose <span class="chemical">lisinopril</span> ( 12 . 5 or 15 . 0 mg once daily [ OD ] ) for 2 to 4 weeks and then randomized to high - ( 35 . 0 or 32 . 5 mg OD ) or low - dose ( 5 . 0 or 2 . 5 mg OD ) groups . 