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: Furthermore , based on our clinical experience , nursing appears to be safe for lactating women with FMF who continue to take colchicine .
### Output Text:
Furthermore , based on our clinical experience , nursing appears to be safe for lactating women with <span class="disease">FMF</span> who continue to take colchicine . 