Clarification question about Internal Validation

Hi RATE team, 

Congratulaiotns on the work!

I have a question while reading the A.2. Internal Validation. In the evaluated data
```
 20 randomly sampled reports per modality (80 total) 
```
, could you provide some more details about the modality information? For example how many cases for each modailty, it will be helpful to interpret the validation, thanks!

