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

### Input Text: Mutations in atm and p53 cause the human cancer - associated diseases ataxia - telangiectasia and Li - Fraumeni syndrome , respectively .
### Output Text:
Mutations in atm and p53 cause the human <span class="disease">cancer - associated diseases</span> <span class="disease">ataxia - telangiectasia</span> and <span class="disease">Li - Fraumeni syndrome</span> , respectively . 