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: Thus , genetic CETP deficiency appears to be an independent risk factor for CHD , primarily due to increased CHD prevalence in men with the D442G mutation and HDL cholesterol between 41 and 60 mg / dl .
### Output Text:
Thus , genetic <span class="disease">CETP deficiency</span> appears to be an independent risk factor for <span class="disease">CHD</span> , primarily due to increased <span class="disease">CHD</span> prevalence in men with the D442G mutation and HDL cholesterol between 41 and 60 mg / dl . 